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Finding the Fourth Proportional to 356,753.12, 535,208.56 and 120,088

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Solution

The fourth proportional to 356,753.12, 535,208.56 and 120,088 is: 180,158.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,753.12 : 535,208.56 = 120,088 : x
  2. Step 2: Convert to fraction form
    356,753.12/535,208.56 = 120,088/x
  3. Step 3: Cross multiply
    356,753.12x = 535,208.56 × 120,088
  4. Step 4: Simplify right side
    356,753.12x = 64,272,125,553.28
  5. Step 5: Solve for x
    x = 64,272,125,553.28/356,753.12
  6. Step 6: Final answer
    x = 180,158.55

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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.