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Finding the Fourth Proportional to 275,491.60, 413,237.40 and 272,867.20

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Solution

The fourth proportional to 275,491.60, 413,237.40 and 272,867.20 is: 409,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,491.60 : 413,237.40 = 272,867.20 : x
  2. Step 2: Convert to fraction form
    275,491.60/413,237.40 = 272,867.20/x
  3. Step 3: Cross multiply
    275,491.60x = 413,237.40 × 272,867.20
  4. Step 4: Simplify right side
    275,491.60x = 112,758,932,273.28
  5. Step 5: Solve for x
    x = 112,758,932,273.28/275,491.60
  6. Step 6: Final answer
    x = 409,300.80

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1.5x scale

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.