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Finding the Fourth Proportional to 247,157.88, 370,792.46 and 87,245.20

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Solution

The fourth proportional to 247,157.88, 370,792.46 and 87,245.20 is: 130,887.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,157.88 : 370,792.46 = 87,245.20 : x
  2. Step 2: Convert to fraction form
    247,157.88/370,792.46 = 87,245.20/x
  3. Step 3: Cross multiply
    247,157.88x = 370,792.46 × 87,245.20
  4. Step 4: Simplify right side
    247,157.88x = 32,349,862,767.42
  5. Step 5: Solve for x
    x = 32,349,862,767.42/247,157.88
  6. Step 6: Final answer
    x = 130,887.44

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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.