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Finding the Fourth Proportional to 490,870.20, 736,305.30 and 158,446.20

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Solution

The fourth proportional to 490,870.20, 736,305.30 and 158,446.20 is: 237,669.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,870.20 : 736,305.30 = 158,446.20 : x
  2. Step 2: Convert to fraction form
    490,870.20/736,305.30 = 158,446.20/x
  3. Step 3: Cross multiply
    490,870.20x = 736,305.30 × 158,446.20
  4. Step 4: Simplify right side
    490,870.20x = 116,664,776,824.86
  5. Step 5: Solve for x
    x = 116,664,776,824.86/490,870.20
  6. Step 6: Final answer
    x = 237,669.30

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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.