Finding the Fourth Proportional to 442,904.55, 664,461.99 and 143,385.18
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Solution
The fourth proportional to 442,904.55, 664,461.99 and 143,385.18 is: 215,111.82
Step by Step Solution
- Step 1: Write the proportion equation
442,904.55 : 664,461.99 = 143,385.18 : x - Step 2: Convert to fraction form
442,904.55/664,461.99 = 143,385.18/x - Step 3: Cross multiply
442,904.55x = 664,461.99 × 143,385.18 - Step 4: Simplify right side
442,904.55x = 95,274,002,039.31 - Step 5: Solve for x
x = 95,274,002,039.31/442,904.55 - Step 6: Final answer
x = 215,111.82
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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.