Home / 258,917.85-357,306.68-151,508.50

Finding the Fourth Proportional to 258,917.85, 357,306.68 and 151,508.50

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Solution

The fourth proportional to 258,917.85, 357,306.68 and 151,508.50 is: 209,081.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,917.85 : 357,306.68 = 151,508.50 : x
  2. Step 2: Convert to fraction form
    258,917.85/357,306.68 = 151,508.50/x
  3. Step 3: Cross multiply
    258,917.85x = 357,306.68 × 151,508.50
  4. Step 4: Simplify right side
    258,917.85x = 54,134,999,126.78
  5. Step 5: Solve for x
    x = 54,134,999,126.78/258,917.85
  6. Step 6: Final answer
    x = 209,081.76

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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.