Home / 257,660.28-386,605.43-99,901.04

Finding the Fourth Proportional to 257,660.28, 386,605.43 and 99,901.04

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Solution

The fourth proportional to 257,660.28, 386,605.43 and 99,901.04 is: 149,896.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,660.28 : 386,605.43 = 99,901.04 : x
  2. Step 2: Convert to fraction form
    257,660.28/386,605.43 = 99,901.04/x
  3. Step 3: Cross multiply
    257,660.28x = 386,605.43 × 99,901.04
  4. Step 4: Simplify right side
    257,660.28x = 38,622,282,094.11
  5. Step 5: Solve for x
    x = 38,622,282,094.11/257,660.28
  6. Step 6: Final answer
    x = 149,896.14

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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.