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Finding the Fourth Proportional to 490,726.37, 736,124.56 and 130,895.21

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Solution

The fourth proportional to 490,726.37, 736,124.56 and 130,895.21 is: 196,352.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,726.37 : 736,124.56 = 130,895.21 : x
  2. Step 2: Convert to fraction form
    490,726.37/736,124.56 = 130,895.21/x
  3. Step 3: Cross multiply
    490,726.37x = 736,124.56 × 130,895.21
  4. Step 4: Simplify right side
    490,726.37x = 96,355,180,380.43
  5. Step 5: Solve for x
    x = 96,355,180,380.43/490,726.37
  6. Step 6: Final answer
    x = 196,352.15

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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.