Finding the Fourth Proportional to 387,701.13, 581,579.43 and 103,390.17
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Solution
The fourth proportional to 387,701.13, 581,579.43 and 103,390.17 is: 155,092.65
Step by Step Solution
- Step 1: Write the proportion equation
387,701.13 : 581,579.43 = 103,390.17 : x - Step 2: Convert to fraction form
387,701.13/581,579.43 = 103,390.17/x - Step 3: Cross multiply
387,701.13x = 581,579.43 × 103,390.17 - Step 4: Simplify right side
387,701.13x = 60,129,596,136.20 - Step 5: Solve for x
x = 60,129,596,136.20/387,701.13 - Step 6: Final answer
x = 155,092.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.