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Finding the Fourth Proportional to 152,385.60, 228,585.60 and 47,278.20

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Solution

The fourth proportional to 152,385.60, 228,585.60 and 47,278.20 is: 70,919.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,385.60 : 228,585.60 = 47,278.20 : x
  2. Step 2: Convert to fraction form
    152,385.60/228,585.60 = 47,278.20/x
  3. Step 3: Cross multiply
    152,385.60x = 228,585.60 × 47,278.20
  4. Step 4: Simplify right side
    152,385.60x = 10,807,115,713.92
  5. Step 5: Solve for x
    x = 10,807,115,713.92/152,385.60
  6. Step 6: Final answer
    x = 70,919.53

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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.