Home / 258,084.91-356,214.11-143,402.96

Finding the Fourth Proportional to 258,084.91, 356,214.11 and 143,402.96

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Solution

The fourth proportional to 258,084.91, 356,214.11 and 143,402.96 is: 197,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,084.91 : 356,214.11 = 143,402.96 : x
  2. Step 2: Convert to fraction form
    258,084.91/356,214.11 = 143,402.96/x
  3. Step 3: Cross multiply
    258,084.91x = 356,214.11 × 143,402.96
  4. Step 4: Simplify right side
    258,084.91x = 51,082,155,937.58
  5. Step 5: Solve for x
    x = 51,082,155,937.58/258,084.91
  6. Step 6: Final answer
    x = 197,927.71

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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.