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Finding the Fourth Proportional to 288,107.54, 397,594.77 and 159,045.71

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Solution

The fourth proportional to 288,107.54, 397,594.77 and 159,045.71 is: 219,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,107.54 : 397,594.77 = 159,045.71 : x
  2. Step 2: Convert to fraction form
    288,107.54/397,594.77 = 159,045.71/x
  3. Step 3: Cross multiply
    288,107.54x = 397,594.77 × 159,045.71
  4. Step 4: Simplify right side
    288,107.54x = 63,235,739,902.54
  5. Step 5: Solve for x
    x = 63,235,739,902.54/288,107.54
  6. Step 6: Final answer
    x = 219,486.59

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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.