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Finding the Fourth Proportional to 490,366.92, 735,549.30 and 130,537.86

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Solution

The fourth proportional to 490,366.92, 735,549.30 and 130,537.86 is: 195,806.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,366.92 : 735,549.30 = 130,537.86 : x
  2. Step 2: Convert to fraction form
    490,366.92/735,549.30 = 130,537.86/x
  3. Step 3: Cross multiply
    490,366.92x = 735,549.30 × 130,537.86
  4. Step 4: Simplify right side
    490,366.92x = 96,017,031,546.50
  5. Step 5: Solve for x
    x = 96,017,031,546.50/490,366.92
  6. Step 6: Final answer
    x = 195,806.50

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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.