Home / 238,839.12-357,963-209,314.56

Finding the Fourth Proportional to 238,839.12, 357,963 and 209,314.56

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Solution

The fourth proportional to 238,839.12, 357,963 and 209,314.56 is: 313,712.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,839.12 : 357,963 = 209,314.56 : x
  2. Step 2: Convert to fraction form
    238,839.12/357,963 = 209,314.56/x
  3. Step 3: Cross multiply
    238,839.12x = 357,963 × 209,314.56
  4. Step 4: Simplify right side
    238,839.12x = 74,926,867,841.28
  5. Step 5: Solve for x
    x = 74,926,867,841.28/238,839.12
  6. Step 6: Final answer
    x = 313,712.71

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1.5x scale

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.