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Finding the Fourth Proportional to 638,339.62, 957,542.28 and 165,029.08

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Solution

The fourth proportional to 638,339.62, 957,542.28 and 165,029.08 is: 247,552.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,339.62 : 957,542.28 = 165,029.08 : x
  2. Step 2: Convert to fraction form
    638,339.62/957,542.28 = 165,029.08/x
  3. Step 3: Cross multiply
    638,339.62x = 957,542.28 × 165,029.08
  4. Step 4: Simplify right side
    638,339.62x = 158,022,321,529.50
  5. Step 5: Solve for x
    x = 158,022,321,529.50/638,339.62
  6. Step 6: Final answer
    x = 247,552.11

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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.