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Finding the Fourth Proportional to 207,430.88, 311,144.28 and 95,079.20

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Solution

The fourth proportional to 207,430.88, 311,144.28 and 95,079.20 is: 142,617.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,430.88 : 311,144.28 = 95,079.20 : x
  2. Step 2: Convert to fraction form
    207,430.88/311,144.28 = 95,079.20/x
  3. Step 3: Cross multiply
    207,430.88x = 311,144.28 × 95,079.20
  4. Step 4: Simplify right side
    207,430.88x = 29,583,349,226.98
  5. Step 5: Solve for x
    x = 29,583,349,226.98/207,430.88
  6. Step 6: Final answer
    x = 142,617.86

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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.