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Finding the Fourth Proportional to 243,377.69, 365,101.13 and 74,912.06

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Solution

The fourth proportional to 243,377.69, 365,101.13 and 74,912.06 is: 112,378.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,377.69 : 365,101.13 = 74,912.06 : x
  2. Step 2: Convert to fraction form
    243,377.69/365,101.13 = 74,912.06/x
  3. Step 3: Cross multiply
    243,377.69x = 365,101.13 × 74,912.06
  4. Step 4: Simplify right side
    243,377.69x = 27,350,478,856.66
  5. Step 5: Solve for x
    x = 27,350,478,856.66/243,377.69
  6. Step 6: Final answer
    x = 112,378.75

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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.