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Finding the Fourth Proportional to 490,726.75, 736,125.12 and 130,895.59

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Solution

The fourth proportional to 490,726.75, 736,125.12 and 130,895.59 is: 196,352.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,726.75 : 736,125.12 = 130,895.59 : x
  2. Step 2: Convert to fraction form
    490,726.75/736,125.12 = 130,895.59/x
  3. Step 3: Cross multiply
    490,726.75x = 736,125.12 × 130,895.59
  4. Step 4: Simplify right side
    490,726.75x = 96,355,530,055.91
  5. Step 5: Solve for x
    x = 96,355,530,055.91/490,726.75
  6. Step 6: Final answer
    x = 196,352.72

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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.