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Finding the Fourth Proportional to 159,311.70, 238,967.55 and 152,486.10

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Solution

The fourth proportional to 159,311.70, 238,967.55 and 152,486.10 is: 228,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,311.70 : 238,967.55 = 152,486.10 : x
  2. Step 2: Convert to fraction form
    159,311.70/238,967.55 = 152,486.10/x
  3. Step 3: Cross multiply
    159,311.70x = 238,967.55 × 152,486.10
  4. Step 4: Simplify right side
    159,311.70x = 36,439,229,726.06
  5. Step 5: Solve for x
    x = 36,439,229,726.06/159,311.70
  6. Step 6: Final answer
    x = 228,729.15

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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.