Home / 462,100.18-693,216.39-142,279.11

Finding the Fourth Proportional to 462,100.18, 693,216.39 and 142,279.11

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Solution

The fourth proportional to 462,100.18, 693,216.39 and 142,279.11 is: 213,439.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,100.18 : 693,216.39 = 142,279.11 : x
  2. Step 2: Convert to fraction form
    462,100.18/693,216.39 = 142,279.11/x
  3. Step 3: Cross multiply
    462,100.18x = 693,216.39 × 142,279.11
  4. Step 4: Simplify right side
    462,100.18x = 98,630,211,540.16
  5. Step 5: Solve for x
    x = 98,630,211,540.16/462,100.18
  6. Step 6: Final answer
    x = 213,439.02

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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.