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Finding the Fourth Proportional to 373,330.16, 515,073.74 and 220,316.71

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Solution

The fourth proportional to 373,330.16, 515,073.74 and 220,316.71 is: 303,965.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,330.16 : 515,073.74 = 220,316.71 : x
  2. Step 2: Convert to fraction form
    373,330.16/515,073.74 = 220,316.71/x
  3. Step 3: Cross multiply
    373,330.16x = 515,073.74 × 220,316.71
  4. Step 4: Simplify right side
    373,330.16x = 113,479,350,380.69
  5. Step 5: Solve for x
    x = 113,479,350,380.69/373,330.16
  6. Step 6: Final answer
    x = 303,965.13

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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.