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Finding the Fourth Proportional to 288,122.71, 397,615.73 and 159,060.89

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Solution

The fourth proportional to 288,122.71, 397,615.73 and 159,060.89 is: 219,507.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,122.71 : 397,615.73 = 159,060.89 : x
  2. Step 2: Convert to fraction form
    288,122.71/397,615.73 = 159,060.89/x
  3. Step 3: Cross multiply
    288,122.71x = 397,615.73 × 159,060.89
  4. Step 4: Simplify right side
    288,122.71x = 63,245,111,096.50
  5. Step 5: Solve for x
    x = 63,245,111,096.50/288,122.71
  6. Step 6: Final answer
    x = 219,507.56

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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.