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Finding the Fourth Proportional to 384,007.60, 575,233.80 and 217,601.20

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Solution

The fourth proportional to 384,007.60, 575,233.80 and 217,601.20 is: 325,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,007.60 : 575,233.80 = 217,601.20 : x
  2. Step 2: Convert to fraction form
    384,007.60/575,233.80 = 217,601.20/x
  3. Step 3: Cross multiply
    384,007.60x = 575,233.80 × 217,601.20
  4. Step 4: Simplify right side
    384,007.60x = 125,171,565,160.56
  5. Step 5: Solve for x
    x = 125,171,565,160.56/384,007.60
  6. Step 6: Final answer
    x = 325,961.17

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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.