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Finding the Fourth Proportional to 235,641.20, 325,131.48 and 172,013.68

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Solution

The fourth proportional to 235,641.20, 325,131.48 and 172,013.68 is: 237,339.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,641.20 : 325,131.48 = 172,013.68 : x
  2. Step 2: Convert to fraction form
    235,641.20/325,131.48 = 172,013.68/x
  3. Step 3: Cross multiply
    235,641.20x = 325,131.48 × 172,013.68
  4. Step 4: Simplify right side
    235,641.20x = 55,927,062,358.65
  5. Step 5: Solve for x
    x = 55,927,062,358.65/235,641.20
  6. Step 6: Final answer
    x = 237,339.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.