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Finding the Fourth Proportional to 251,683.20, 377,656.43 and 101,939.31

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Solution

The fourth proportional to 251,683.20, 377,656.43 and 101,939.31 is: 152,962.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,683.20 : 377,656.43 = 101,939.31 : x
  2. Step 2: Convert to fraction form
    251,683.20/377,656.43 = 101,939.31/x
  3. Step 3: Cross multiply
    251,683.20x = 377,656.43 × 101,939.31
  4. Step 4: Simplify right side
    251,683.20x = 38,498,035,381.57
  5. Step 5: Solve for x
    x = 38,498,035,381.57/251,683.20
  6. Step 6: Final answer
    x = 152,962.28

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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.