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Finding the Fourth Proportional to 342,557.67, 513,799.53 and 89,863.47

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Solution

The fourth proportional to 342,557.67, 513,799.53 and 89,863.47 is: 134,785.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,557.67 : 513,799.53 = 89,863.47 : x
  2. Step 2: Convert to fraction form
    342,557.67/513,799.53 = 89,863.47/x
  3. Step 3: Cross multiply
    342,557.67x = 513,799.53 × 89,863.47
  4. Step 4: Simplify right side
    342,557.67x = 46,171,808,650.17
  5. Step 5: Solve for x
    x = 46,171,808,650.17/342,557.67
  6. Step 6: Final answer
    x = 134,785.51

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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.