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Finding the Fourth Proportional to 354,125.04, 531,143.52 and 143,560.68

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Solution

The fourth proportional to 354,125.04, 531,143.52 and 143,560.68 is: 215,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,125.04 : 531,143.52 = 143,560.68 : x
  2. Step 2: Convert to fraction form
    354,125.04/531,143.52 = 143,560.68/x
  3. Step 3: Cross multiply
    354,125.04x = 531,143.52 × 143,560.68
  4. Step 4: Simplify right side
    354,125.04x = 76,251,324,908.79
  5. Step 5: Solve for x
    x = 76,251,324,908.79/354,125.04
  6. Step 6: Final answer
    x = 215,323.17

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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.