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Finding the Fourth Proportional to 288,109.91, 397,613.71 and 159,073.27

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Solution

The fourth proportional to 288,109.91, 397,613.71 and 159,073.27 is: 219,533.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,109.91 : 397,613.71 = 159,073.27 : x
  2. Step 2: Convert to fraction form
    288,109.91/397,613.71 = 159,073.27/x
  3. Step 3: Cross multiply
    288,109.91x = 397,613.71 × 159,073.27
  4. Step 4: Simplify right side
    288,109.91x = 63,249,712,251.34
  5. Step 5: Solve for x
    x = 63,249,712,251.34/288,109.91
  6. Step 6: Final answer
    x = 219,533.27

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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.