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Finding the Fourth Proportional to 398,649.29, 550,269.33 and 237,554.87

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Solution

The fourth proportional to 398,649.29, 550,269.33 and 237,554.87 is: 327,905.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,649.29 : 550,269.33 = 237,554.87 : x
  2. Step 2: Convert to fraction form
    398,649.29/550,269.33 = 237,554.87/x
  3. Step 3: Cross multiply
    398,649.29x = 550,269.33 × 237,554.87
  4. Step 4: Simplify right side
    398,649.29x = 130,719,159,153.14
  5. Step 5: Solve for x
    x = 130,719,159,153.14/398,649.29
  6. Step 6: Final answer
    x = 327,905.16

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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.