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Finding the Fourth Proportional to 288,569.50, 398,213.45 and 159,501.26

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Solution

The fourth proportional to 288,569.50, 398,213.45 and 159,501.26 is: 220,104.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,569.50 : 398,213.45 = 159,501.26 : x
  2. Step 2: Convert to fraction form
    288,569.50/398,213.45 = 159,501.26/x
  3. Step 3: Cross multiply
    288,569.50x = 398,213.45 × 159,501.26
  4. Step 4: Simplify right side
    288,569.50x = 63,515,548,418.23
  5. Step 5: Solve for x
    x = 63,515,548,418.23/288,569.50
  6. Step 6: Final answer
    x = 220,104.86

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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.