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Finding the Fourth Proportional to 314,871.70, 472,453.35 and 165,280.90

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Solution

The fourth proportional to 314,871.70, 472,453.35 and 165,280.90 is: 247,997.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,871.70 : 472,453.35 = 165,280.90 : x
  2. Step 2: Convert to fraction form
    314,871.70/472,453.35 = 165,280.90/x
  3. Step 3: Cross multiply
    314,871.70x = 472,453.35 × 165,280.90
  4. Step 4: Simplify right side
    314,871.70x = 78,087,514,896.02
  5. Step 5: Solve for x
    x = 78,087,514,896.02/314,871.70
  6. Step 6: Final answer
    x = 247,997.88

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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.