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Finding the Fourth Proportional to 501,261.70, 752,001.90 and 146,246.80

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Solution

The fourth proportional to 501,261.70, 752,001.90 and 146,246.80 is: 219,402.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,261.70 : 752,001.90 = 146,246.80 : x
  2. Step 2: Convert to fraction form
    501,261.70/752,001.90 = 146,246.80/x
  3. Step 3: Cross multiply
    501,261.70x = 752,001.90 × 146,246.80
  4. Step 4: Simplify right side
    501,261.70x = 109,977,871,468.92
  5. Step 5: Solve for x
    x = 109,977,871,468.92/501,261.70
  6. Step 6: Final answer
    x = 219,402.10

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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.