Finding the Fourth Proportional to 354,259.81, 531,334.95 and 129,567.70
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Solution
The fourth proportional to 354,259.81, 531,334.95 and 129,567.70 is: 194,331.52
Step by Step Solution
- Step 1: Write the proportion equation
354,259.81 : 531,334.95 = 129,567.70 : x - Step 2: Convert to fraction form
354,259.81/531,334.95 = 129,567.70/x - Step 3: Cross multiply
354,259.81x = 531,334.95 × 129,567.70 - Step 4: Simplify right side
354,259.81x = 68,843,847,401.12 - Step 5: Solve for x
x = 68,843,847,401.12/354,259.81 - Step 6: Final answer
x = 194,331.52
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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.