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Finding the Fourth Proportional to 150,047.31, 207,084.12 and 98,407.79

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Solution

The fourth proportional to 150,047.31, 207,084.12 and 98,407.79 is: 135,815.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,047.31 : 207,084.12 = 98,407.79 : x
  2. Step 2: Convert to fraction form
    150,047.31/207,084.12 = 98,407.79/x
  3. Step 3: Cross multiply
    150,047.31x = 207,084.12 × 98,407.79
  4. Step 4: Simplify right side
    150,047.31x = 20,378,689,557.87
  5. Step 5: Solve for x
    x = 20,378,689,557.87/150,047.31
  6. Step 6: Final answer
    x = 135,815.09

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1.5x scale

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.