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Finding the Fourth Proportional to 226,987.20, 340,480.80 and 77,266.80

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Solution

The fourth proportional to 226,987.20, 340,480.80 and 77,266.80 is: 115,900.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,987.20 : 340,480.80 = 77,266.80 : x
  2. Step 2: Convert to fraction form
    226,987.20/340,480.80 = 77,266.80/x
  3. Step 3: Cross multiply
    226,987.20x = 340,480.80 × 77,266.80
  4. Step 4: Simplify right side
    226,987.20x = 26,307,861,877.44
  5. Step 5: Solve for x
    x = 26,307,861,877.44/226,987.20
  6. Step 6: Final answer
    x = 115,900.20

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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.