Home / 421,266.28-632,010.12-151,421.80

Finding the Fourth Proportional to 421,266.28, 632,010.12 and 151,421.80

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Solution

The fourth proportional to 421,266.28, 632,010.12 and 151,421.80 is: 227,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,266.28 : 632,010.12 = 151,421.80 : x
  2. Step 2: Convert to fraction form
    421,266.28/632,010.12 = 151,421.80/x
  3. Step 3: Cross multiply
    421,266.28x = 632,010.12 × 151,421.80
  4. Step 4: Simplify right side
    421,266.28x = 95,700,109,988.62
  5. Step 5: Solve for x
    x = 95,700,109,988.62/421,266.28
  6. Step 6: Final answer
    x = 227,172.49

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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.