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Finding the Fourth Proportional to 248,397.58, 372,482.16 and 79,886.80

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Solution

The fourth proportional to 248,397.58, 372,482.16 and 79,886.80 is: 119,793.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,397.58 : 372,482.16 = 79,886.80 : x
  2. Step 2: Convert to fraction form
    248,397.58/372,482.16 = 79,886.80/x
  3. Step 3: Cross multiply
    248,397.58x = 372,482.16 × 79,886.80
  4. Step 4: Simplify right side
    248,397.58x = 29,756,407,819.49
  5. Step 5: Solve for x
    x = 29,756,407,819.49/248,397.58
  6. Step 6: Final answer
    x = 119,793.47

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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.