Home / 250,212.80-375,343.84-72,721.36

Finding the Fourth Proportional to 250,212.80, 375,343.84 and 72,721.36

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Solution

The fourth proportional to 250,212.80, 375,343.84 and 72,721.36 is: 109,089.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,212.80 : 375,343.84 = 72,721.36 : x
  2. Step 2: Convert to fraction form
    250,212.80/375,343.84 = 72,721.36/x
  3. Step 3: Cross multiply
    250,212.80x = 375,343.84 × 72,721.36
  4. Step 4: Simplify right side
    250,212.80x = 27,295,514,512.42
  5. Step 5: Solve for x
    x = 27,295,514,512.42/250,212.80
  6. Step 6: Final answer
    x = 109,089.20

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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.