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Finding the Fourth Proportional to 438,399.13, 604,990.80 and 237,195.13

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Solution

The fourth proportional to 438,399.13, 604,990.80 and 237,195.13 is: 327,329.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,399.13 : 604,990.80 = 237,195.13 : x
  2. Step 2: Convert to fraction form
    438,399.13/604,990.80 = 237,195.13/x
  3. Step 3: Cross multiply
    438,399.13x = 604,990.80 × 237,195.13
  4. Step 4: Simplify right side
    438,399.13x = 143,500,867,243.87
  5. Step 5: Solve for x
    x = 143,500,867,243.87/438,399.13
  6. Step 6: Final answer
    x = 327,329.27

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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.