Home / 238,018.49-357,028.95-80,248.31

Finding the Fourth Proportional to 238,018.49, 357,028.95 and 80,248.31

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Solution

The fourth proportional to 238,018.49, 357,028.95 and 80,248.31 is: 120,372.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,018.49 : 357,028.95 = 80,248.31 : x
  2. Step 2: Convert to fraction form
    238,018.49/357,028.95 = 80,248.31/x
  3. Step 3: Cross multiply
    238,018.49x = 357,028.95 × 80,248.31
  4. Step 4: Simplify right side
    238,018.49x = 28,650,968,073.43
  5. Step 5: Solve for x
    x = 28,650,968,073.43/238,018.49
  6. Step 6: Final answer
    x = 120,372.87

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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.