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Finding the Fourth Proportional to 250,079.02, 345,102.28 and 142,646.79

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Solution

The fourth proportional to 250,079.02, 345,102.28 and 142,646.79 is: 196,848.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,079.02 : 345,102.28 = 142,646.79 : x
  2. Step 2: Convert to fraction form
    250,079.02/345,102.28 = 142,646.79/x
  3. Step 3: Cross multiply
    250,079.02x = 345,102.28 × 142,646.79
  4. Step 4: Simplify right side
    250,079.02x = 49,227,732,463.68
  5. Step 5: Solve for x
    x = 49,227,732,463.68/250,079.02
  6. Step 6: Final answer
    x = 196,848.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.