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Finding the Fourth Proportional to 240,615.70, 332,123.69 and 138,709.32

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Solution

The fourth proportional to 240,615.70, 332,123.69 and 138,709.32 is: 191,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,615.70 : 332,123.69 = 138,709.32 : x
  2. Step 2: Convert to fraction form
    240,615.70/332,123.69 = 138,709.32/x
  3. Step 3: Cross multiply
    240,615.70x = 332,123.69 × 138,709.32
  4. Step 4: Simplify right side
    240,615.70x = 46,068,651,542.56
  5. Step 5: Solve for x
    x = 46,068,651,542.56/240,615.70
  6. Step 6: Final answer
    x = 191,461.54

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1.5x scale

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.