Finding the Fourth Proportional to 387,937.05, 535,347.98 and 218,171.17
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Solution
The fourth proportional to 387,937.05, 535,347.98 and 218,171.17 is: 301,073.33
Step by Step Solution
- Step 1: Write the proportion equation
387,937.05 : 535,347.98 = 218,171.17 : x - Step 2: Convert to fraction form
387,937.05/535,347.98 = 218,171.17/x - Step 3: Cross multiply
387,937.05x = 535,347.98 × 218,171.17 - Step 4: Simplify right side
387,937.05x = 116,797,496,777.42 - Step 5: Solve for x
x = 116,797,496,777.42/387,937.05 - Step 6: Final answer
x = 301,073.33
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.