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Finding the Fourth Proportional to 284,124.40, 425,891.40 and 115,572.40

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Solution

The fourth proportional to 284,124.40, 425,891.40 and 115,572.40 is: 173,238.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,124.40 : 425,891.40 = 115,572.40 : x
  2. Step 2: Convert to fraction form
    284,124.40/425,891.40 = 115,572.40/x
  3. Step 3: Cross multiply
    284,124.40x = 425,891.40 × 115,572.40
  4. Step 4: Simplify right side
    284,124.40x = 49,221,291,237.36
  5. Step 5: Solve for x
    x = 49,221,291,237.36/284,124.40
  6. Step 6: Final answer
    x = 173,238.52

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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.