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Finding the Fourth Proportional to 279,317.52, 385,466.28 and 152,001.32

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Solution

The fourth proportional to 279,317.52, 385,466.28 and 152,001.32 is: 209,766.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,317.52 : 385,466.28 = 152,001.32 : x
  2. Step 2: Convert to fraction form
    279,317.52/385,466.28 = 152,001.32/x
  3. Step 3: Cross multiply
    279,317.52x = 385,466.28 × 152,001.32
  4. Step 4: Simplify right side
    279,317.52x = 58,591,383,375.49
  5. Step 5: Solve for x
    x = 58,591,383,375.49/279,317.52
  6. Step 6: Final answer
    x = 209,766.23

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1.5x scale

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.