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Finding the Fourth Proportional to 253,962.79, 381,007.60 and 179,228.90

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Solution

The fourth proportional to 253,962.79, 381,007.60 and 179,228.90 is: 268,888.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,962.79 : 381,007.60 = 179,228.90 : x
  2. Step 2: Convert to fraction form
    253,962.79/381,007.60 = 179,228.90/x
  3. Step 3: Cross multiply
    253,962.79x = 381,007.60 × 179,228.90
  4. Step 4: Simplify right side
    253,962.79x = 68,287,572,409.08
  5. Step 5: Solve for x
    x = 68,287,572,409.08/253,962.79
  6. Step 6: Final answer
    x = 268,888.10

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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.