Home / 440,021.12-607,229.76-238,817.12

Finding the Fourth Proportional to 440,021.12, 607,229.76 and 238,817.12

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Solution

The fourth proportional to 440,021.12, 607,229.76 and 238,817.12 is: 329,567.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,021.12 : 607,229.76 = 238,817.12 : x
  2. Step 2: Convert to fraction form
    440,021.12/607,229.76 = 238,817.12/x
  3. Step 3: Cross multiply
    440,021.12x = 607,229.76 × 238,817.12
  4. Step 4: Simplify right side
    440,021.12x = 145,016,862,461.49
  5. Step 5: Solve for x
    x = 145,016,862,461.49/440,021.12
  6. Step 6: Final answer
    x = 329,567.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.