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Finding the Fourth Proportional to 490,230.55, 735,346.40 and 153,272.97

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Solution

The fourth proportional to 490,230.55, 735,346.40 and 153,272.97 is: 229,909.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,230.55 : 735,346.40 = 153,272.97 : x
  2. Step 2: Convert to fraction form
    490,230.55/735,346.40 = 153,272.97/x
  3. Step 3: Cross multiply
    490,230.55x = 735,346.40 × 153,272.97
  4. Step 4: Simplify right side
    490,230.55x = 112,708,726,706.81
  5. Step 5: Solve for x
    x = 112,708,726,706.81/490,230.55
  6. Step 6: Final answer
    x = 229,909.63

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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.