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Finding the Fourth Proportional to 423,011.52, 633,671.24 and 254,438.72

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Solution

The fourth proportional to 423,011.52, 633,671.24 and 254,438.72 is: 381,149.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,011.52 : 633,671.24 = 254,438.72 : x
  2. Step 2: Convert to fraction form
    423,011.52/633,671.24 = 254,438.72/x
  3. Step 3: Cross multiply
    423,011.52x = 633,671.24 × 254,438.72
  4. Step 4: Simplify right side
    423,011.52x = 161,230,499,206.41
  5. Step 5: Solve for x
    x = 161,230,499,206.41/423,011.52
  6. Step 6: Final answer
    x = 381,149.19

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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.