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Finding the Fourth Proportional to 243,780.06, 365,709.06 and 75,260.78

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Solution

The fourth proportional to 243,780.06, 365,709.06 and 75,260.78 is: 112,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,780.06 : 365,709.06 = 75,260.78 : x
  2. Step 2: Convert to fraction form
    243,780.06/365,709.06 = 75,260.78/x
  3. Step 3: Cross multiply
    243,780.06x = 365,709.06 × 75,260.78
  4. Step 4: Simplify right side
    243,780.06x = 27,523,548,651.53
  5. Step 5: Solve for x
    x = 27,523,548,651.53/243,780.06
  6. Step 6: Final answer
    x = 112,903.20

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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.