Home / 229,987.28-345,031.80-80,221.52

Finding the Fourth Proportional to 229,987.28, 345,031.80 and 80,221.52

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Solution

The fourth proportional to 229,987.28, 345,031.80 and 80,221.52 is: 120,350.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,987.28 : 345,031.80 = 80,221.52 : x
  2. Step 2: Convert to fraction form
    229,987.28/345,031.80 = 80,221.52/x
  3. Step 3: Cross multiply
    229,987.28x = 345,031.80 × 80,221.52
  4. Step 4: Simplify right side
    229,987.28x = 27,678,975,444.34
  5. Step 5: Solve for x
    x = 27,678,975,444.34/229,987.28
  6. Step 6: Final answer
    x = 120,350.03

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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.