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Finding the Fourth Proportional to 372,171.04, 513,607.52 and 211,032.80

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Solution

The fourth proportional to 372,171.04, 513,607.52 and 211,032.80 is: 291,231.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,171.04 : 513,607.52 = 211,032.80 : x
  2. Step 2: Convert to fraction form
    372,171.04/513,607.52 = 211,032.80/x
  3. Step 3: Cross multiply
    372,171.04x = 513,607.52 × 211,032.80
  4. Step 4: Simplify right side
    372,171.04x = 108,388,033,046.66
  5. Step 5: Solve for x
    x = 108,388,033,046.66/372,171.04
  6. Step 6: Final answer
    x = 291,231.78

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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.