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Finding the Fourth Proportional to 288,288.48, 397,851.36 and 159,244.80

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Solution

The fourth proportional to 288,288.48, 397,851.36 and 159,244.80 is: 219,765.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,288.48 : 397,851.36 = 159,244.80 : x
  2. Step 2: Convert to fraction form
    288,288.48/397,851.36 = 159,244.80/x
  3. Step 3: Cross multiply
    288,288.48x = 397,851.36 × 159,244.80
  4. Step 4: Simplify right side
    288,288.48x = 63,355,760,252.93
  5. Step 5: Solve for x
    x = 63,355,760,252.93/288,288.48
  6. Step 6: Final answer
    x = 219,765.15

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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.