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Finding the Fourth Proportional to 263,330.70, 394,327.80 and 144,868.20

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Solution

The fourth proportional to 263,330.70, 394,327.80 and 144,868.20 is: 216,934.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,330.70 : 394,327.80 = 144,868.20 : x
  2. Step 2: Convert to fraction form
    263,330.70/394,327.80 = 144,868.20/x
  3. Step 3: Cross multiply
    263,330.70x = 394,327.80 × 144,868.20
  4. Step 4: Simplify right side
    263,330.70x = 57,125,558,595.96
  5. Step 5: Solve for x
    x = 57,125,558,595.96/263,330.70
  6. Step 6: Final answer
    x = 216,934.67

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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.