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Finding the Fourth Proportional to 220,780.52, 330,970.82 and 153,344.39

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Solution

The fourth proportional to 220,780.52, 330,970.82 and 153,344.39 is: 229,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,780.52 : 330,970.82 = 153,344.39 : x
  2. Step 2: Convert to fraction form
    220,780.52/330,970.82 = 153,344.39/x
  3. Step 3: Cross multiply
    220,780.52x = 330,970.82 × 153,344.39
  4. Step 4: Simplify right side
    220,780.52x = 50,752,518,561.40
  5. Step 5: Solve for x
    x = 50,752,518,561.40/220,780.52
  6. Step 6: Final answer
    x = 229,877.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.