Finding the Fourth Proportional to 453,420.30, 680,389.65 and 173,138.70
Calculator
Solution
The fourth proportional to 453,420.30, 680,389.65 and 173,138.70 is: 259,807.03
Step by Step Solution
- Step 1: Write the proportion equation
453,420.30 : 680,389.65 = 173,138.70 : x - Step 2: Convert to fraction form
453,420.30/680,389.65 = 173,138.70/x - Step 3: Cross multiply
453,420.30x = 680,389.65 × 173,138.70 - Step 4: Simplify right side
453,420.30x = 117,801,779,494.46 - Step 5: Solve for x
x = 117,801,779,494.46/453,420.30 - Step 6: Final answer
x = 259,807.03
Related Problems
Find fourth proportional to 226,710.15, 340,194.83 and 86,569.35
Half scale
Find fourth proportional to 906,840.60, 1,360,779.30 and 346,277.40
Double scale
Find fourth proportional to 453,421.30, 680,391.15 and 173,139.70
Similar ratio
Find fourth proportional to 680,130.45, 1,020,584.48 and 259,708.05
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.