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Finding the Fourth Proportional to 325,488, 488,232.09 and 156,976.95

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Solution

The fourth proportional to 325,488, 488,232.09 and 156,976.95 is: 235,465.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,488 : 488,232.09 = 156,976.95 : x
  2. Step 2: Convert to fraction form
    325,488/488,232.09 = 156,976.95/x
  3. Step 3: Cross multiply
    325,488x = 488,232.09 × 156,976.95
  4. Step 4: Simplify right side
    325,488x = 76,641,184,380.33
  5. Step 5: Solve for x
    x = 76,641,184,380.33/325,488
  6. Step 6: Final answer
    x = 235,465.47

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1.5x scale

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.