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Finding the Fourth Proportional to 485,153.30, 727,729.95 and 367,055.30

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Solution

The fourth proportional to 485,153.30, 727,729.95 and 367,055.30 is: 550,582.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,153.30 : 727,729.95 = 367,055.30 : x
  2. Step 2: Convert to fraction form
    485,153.30/727,729.95 = 367,055.30/x
  3. Step 3: Cross multiply
    485,153.30x = 727,729.95 × 367,055.30
  4. Step 4: Simplify right side
    485,153.30x = 267,117,135,116.24
  5. Step 5: Solve for x
    x = 267,117,135,116.24/485,153.30
  6. Step 6: Final answer
    x = 550,582.95

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Similar ratio
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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.