Finding the Fourth Proportional to 399,267.40, 598,901.10 and 162,779.80
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Solution
The fourth proportional to 399,267.40, 598,901.10 and 162,779.80 is: 244,169.70
Step by Step Solution
- Step 1: Write the proportion equation
399,267.40 : 598,901.10 = 162,779.80 : x - Step 2: Convert to fraction form
399,267.40/598,901.10 = 162,779.80/x - Step 3: Cross multiply
399,267.40x = 598,901.10 × 162,779.80 - Step 4: Simplify right side
399,267.40x = 97,489,001,277.78 - Step 5: Solve for x
x = 97,489,001,277.78/399,267.40 - Step 6: Final answer
x = 244,169.70
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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.