Finding the Fourth Proportional to 472,209.15, 651,629.61 and 257,344.59
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Solution
The fourth proportional to 472,209.15, 651,629.61 and 257,344.59 is: 355,125.17
Step by Step Solution
- Step 1: Write the proportion equation
472,209.15 : 651,629.61 = 257,344.59 : x - Step 2: Convert to fraction form
472,209.15/651,629.61 = 257,344.59/x - Step 3: Cross multiply
472,209.15x = 651,629.61 × 257,344.59 - Step 4: Simplify right side
472,209.15x = 167,693,354,817.31 - Step 5: Solve for x
x = 167,693,354,817.31/472,209.15 - Step 6: Final answer
x = 355,125.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.