Home / 263,319.90-394,979.85-157,031.70

Finding the Fourth Proportional to 263,319.90, 394,979.85 and 157,031.70

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Solution

The fourth proportional to 263,319.90, 394,979.85 and 157,031.70 is: 235,547.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,319.90 : 394,979.85 = 157,031.70 : x
  2. Step 2: Convert to fraction form
    263,319.90/394,979.85 = 157,031.70/x
  3. Step 3: Cross multiply
    263,319.90x = 394,979.85 × 157,031.70
  4. Step 4: Simplify right side
    263,319.90x = 62,024,357,311.25
  5. Step 5: Solve for x
    x = 62,024,357,311.25/263,319.90
  6. Step 6: Final answer
    x = 235,547.55

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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.