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Finding the Fourth Proportional to 356,204.61, 534,334.68 and 103,489.20

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Solution

The fourth proportional to 356,204.61, 534,334.68 and 103,489.20 is: 155,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,204.61 : 534,334.68 = 103,489.20 : x
  2. Step 2: Convert to fraction form
    356,204.61/534,334.68 = 103,489.20/x
  3. Step 3: Cross multiply
    356,204.61x = 534,334.68 × 103,489.20
  4. Step 4: Simplify right side
    356,204.61x = 55,297,868,565.46
  5. Step 5: Solve for x
    x = 55,297,868,565.46/356,204.61
  6. Step 6: Final answer
    x = 155,241.87

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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.