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Finding the Fourth Proportional to 288,008.33, 432,107.28 and 136,270.62

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Solution

The fourth proportional to 288,008.33, 432,107.28 and 136,270.62 is: 204,450.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,008.33 : 432,107.28 = 136,270.62 : x
  2. Step 2: Convert to fraction form
    288,008.33/432,107.28 = 136,270.62/x
  3. Step 3: Cross multiply
    288,008.33x = 432,107.28 × 136,270.62
  4. Step 4: Simplify right side
    288,008.33x = 58,883,526,952.11
  5. Step 5: Solve for x
    x = 58,883,526,952.11/288,008.33
  6. Step 6: Final answer
    x = 204,450.78

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1.5x scale

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.