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Finding the Fourth Proportional to 492,139.60, 738,209.40 and 267,607.60

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Solution

The fourth proportional to 492,139.60, 738,209.40 and 267,607.60 is: 401,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,139.60 : 738,209.40 = 267,607.60 : x
  2. Step 2: Convert to fraction form
    492,139.60/738,209.40 = 267,607.60/x
  3. Step 3: Cross multiply
    492,139.60x = 738,209.40 × 267,607.60
  4. Step 4: Simplify right side
    492,139.60x = 197,550,445,831.44
  5. Step 5: Solve for x
    x = 197,550,445,831.44/492,139.60
  6. Step 6: Final answer
    x = 401,411.40

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Similar ratio
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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.