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Finding the Fourth Proportional to 263,306.70, 394,291.80 and 144,844.20

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Solution

The fourth proportional to 263,306.70, 394,291.80 and 144,844.20 is: 216,898.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,306.70 : 394,291.80 = 144,844.20 : x
  2. Step 2: Convert to fraction form
    263,306.70/394,291.80 = 144,844.20/x
  3. Step 3: Cross multiply
    263,306.70x = 394,291.80 × 144,844.20
  4. Step 4: Simplify right side
    263,306.70x = 57,110,880,337.56
  5. Step 5: Solve for x
    x = 57,110,880,337.56/263,306.70
  6. Step 6: Final answer
    x = 216,898.70

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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.