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Finding the Fourth Proportional to 247,337.53, 371,033.54 and 78,818.65

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Solution

The fourth proportional to 247,337.53, 371,033.54 and 78,818.65 is: 118,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,337.53 : 371,033.54 = 78,818.65 : x
  2. Step 2: Convert to fraction form
    247,337.53/371,033.54 = 78,818.65/x
  3. Step 3: Cross multiply
    247,337.53x = 371,033.54 × 78,818.65
  4. Step 4: Simplify right side
    247,337.53x = 29,244,362,333.43
  5. Step 5: Solve for x
    x = 29,244,362,333.43/247,337.53
  6. Step 6: Final answer
    x = 118,236.66

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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.