Finding the Fourth Proportional to 315,154.60, 472,337.70 and 157,427.08
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Solution
The fourth proportional to 315,154.60, 472,337.70 and 157,427.08 is: 235,943.71
Step by Step Solution
- Step 1: Write the proportion equation
315,154.60 : 472,337.70 = 157,427.08 : x - Step 2: Convert to fraction form
315,154.60/472,337.70 = 157,427.08/x - Step 3: Cross multiply
315,154.60x = 472,337.70 × 157,427.08 - Step 4: Simplify right side
315,154.60x = 74,358,744,884.92 - Step 5: Solve for x
x = 74,358,744,884.92/315,154.60 - Step 6: Final answer
x = 235,943.71
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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.