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Finding the Fourth Proportional to 252,451.89, 348,361.16 and 145,011.87

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Solution

The fourth proportional to 252,451.89, 348,361.16 and 145,011.87 is: 200,103.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,451.89 : 348,361.16 = 145,011.87 : x
  2. Step 2: Convert to fraction form
    252,451.89/348,361.16 = 145,011.87/x
  3. Step 3: Cross multiply
    252,451.89x = 348,361.16 × 145,011.87
  4. Step 4: Simplify right side
    252,451.89x = 50,516,502,521.91
  5. Step 5: Solve for x
    x = 50,516,502,521.91/252,451.89
  6. Step 6: Final answer
    x = 200,103.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.