Home / 268,890.12-371,228.10-238,996.68

Finding the Fourth Proportional to 268,890.12, 371,228.10 and 238,996.68

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Solution

The fourth proportional to 268,890.12, 371,228.10 and 238,996.68 is: 329,957.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,890.12 : 371,228.10 = 238,996.68 : x
  2. Step 2: Convert to fraction form
    268,890.12/371,228.10 = 238,996.68/x
  3. Step 3: Cross multiply
    268,890.12x = 371,228.10 × 238,996.68
  4. Step 4: Simplify right side
    268,890.12x = 88,722,283,422.71
  5. Step 5: Solve for x
    x = 88,722,283,422.71/268,890.12
  6. Step 6: Final answer
    x = 329,957.39

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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.