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Finding the Fourth Proportional to 490,456.38, 735,287.55 and 153,323.46

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Solution

The fourth proportional to 490,456.38, 735,287.55 and 153,323.46 is: 229,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,456.38 : 735,287.55 = 153,323.46 : x
  2. Step 2: Convert to fraction form
    490,456.38/735,287.55 = 153,323.46/x
  3. Step 3: Cross multiply
    490,456.38x = 735,287.55 × 153,323.46
  4. Step 4: Simplify right side
    490,456.38x = 112,736,831,260.92
  5. Step 5: Solve for x
    x = 112,736,831,260.92/490,456.38
  6. Step 6: Final answer
    x = 229,861.08

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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.