Home / 263,320.90-394,981.35-157,032.70

Finding the Fourth Proportional to 263,320.90, 394,981.35 and 157,032.70

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Solution

The fourth proportional to 263,320.90, 394,981.35 and 157,032.70 is: 235,549.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,320.90 : 394,981.35 = 157,032.70 : x
  2. Step 2: Convert to fraction form
    263,320.90/394,981.35 = 157,032.70/x
  3. Step 3: Cross multiply
    263,320.90x = 394,981.35 × 157,032.70
  4. Step 4: Simplify right side
    263,320.90x = 62,024,987,840.15
  5. Step 5: Solve for x
    x = 62,024,987,840.15/263,320.90
  6. Step 6: Final answer
    x = 235,549.05

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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.