Home / 154,314.72-231,480-43,515.36

Finding the Fourth Proportional to 154,314.72, 231,480 and 43,515.36

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Solution

The fourth proportional to 154,314.72, 231,480 and 43,515.36 is: 65,275.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,314.72 : 231,480 = 43,515.36 : x
  2. Step 2: Convert to fraction form
    154,314.72/231,480 = 43,515.36/x
  3. Step 3: Cross multiply
    154,314.72x = 231,480 × 43,515.36
  4. Step 4: Simplify right side
    154,314.72x = 10,072,935,532.80
  5. Step 5: Solve for x
    x = 10,072,935,532.80/154,314.72
  6. Step 6: Final answer
    x = 65,275.27

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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.