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Finding the Fourth Proportional to 288,641.48, 398,308.08 and 159,572.22

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Solution

The fourth proportional to 288,641.48, 398,308.08 and 159,572.22 is: 220,200.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,641.48 : 398,308.08 = 159,572.22 : x
  2. Step 2: Convert to fraction form
    288,641.48/398,308.08 = 159,572.22/x
  3. Step 3: Cross multiply
    288,641.48x = 398,308.08 × 159,572.22
  4. Step 4: Simplify right side
    288,641.48x = 63,558,904,569.54
  5. Step 5: Solve for x
    x = 63,558,904,569.54/288,641.48
  6. Step 6: Final answer
    x = 220,200.18

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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.