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Finding the Fourth Proportional to 360,474.60, 540,128.70 and 227,116.20

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Solution

The fourth proportional to 360,474.60, 540,128.70 and 227,116.20 is: 340,306.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,474.60 : 540,128.70 = 227,116.20 : x
  2. Step 2: Convert to fraction form
    360,474.60/540,128.70 = 227,116.20/x
  3. Step 3: Cross multiply
    360,474.60x = 540,128.70 × 227,116.20
  4. Step 4: Simplify right side
    360,474.60x = 122,671,977,854.94
  5. Step 5: Solve for x
    x = 122,671,977,854.94/360,474.60
  6. Step 6: Final answer
    x = 340,306.86

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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.