Finding the Fourth Proportional to 577,154.12, 865,731.18 and 156,429.99
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Solution
The fourth proportional to 577,154.12, 865,731.18 and 156,429.99 is: 234,644.99
Step by Step Solution
- Step 1: Write the proportion equation
577,154.12 : 865,731.18 = 156,429.99 : x - Step 2: Convert to fraction form
577,154.12/865,731.18 = 156,429.99/x - Step 3: Cross multiply
577,154.12x = 865,731.18 × 156,429.99 - Step 4: Simplify right side
577,154.12x = 135,426,319,830.09 - Step 5: Solve for x
x = 135,426,319,830.09/577,154.12 - Step 6: Final answer
x = 234,644.99
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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.