Home / 345,631.19-518,446.85-108,992.39

Finding the Fourth Proportional to 345,631.19, 518,446.85 and 108,992.39

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Solution

The fourth proportional to 345,631.19, 518,446.85 and 108,992.39 is: 163,488.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,631.19 : 518,446.85 = 108,992.39 : x
  2. Step 2: Convert to fraction form
    345,631.19/518,446.85 = 108,992.39/x
  3. Step 3: Cross multiply
    345,631.19x = 518,446.85 × 108,992.39
  4. Step 4: Simplify right side
    345,631.19x = 56,506,758,132.28
  5. Step 5: Solve for x
    x = 56,506,758,132.28/345,631.19
  6. Step 6: Final answer
    x = 163,488.60

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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.