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Finding the Fourth Proportional to 250,421.54, 375,466.22 and 81,882.80

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Solution

The fourth proportional to 250,421.54, 375,466.22 and 81,882.80 is: 122,769.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,421.54 : 375,466.22 = 81,882.80 : x
  2. Step 2: Convert to fraction form
    250,421.54/375,466.22 = 81,882.80/x
  3. Step 3: Cross multiply
    250,421.54x = 375,466.22 × 81,882.80
  4. Step 4: Simplify right side
    250,421.54x = 30,744,225,399.02
  5. Step 5: Solve for x
    x = 30,744,225,399.02/250,421.54
  6. Step 6: Final answer
    x = 122,769.89

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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.