Home / 217,844.20-326,766.30-77,607.40

Finding the Fourth Proportional to 217,844.20, 326,766.30 and 77,607.40

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Solution

The fourth proportional to 217,844.20, 326,766.30 and 77,607.40 is: 116,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,844.20 : 326,766.30 = 77,607.40 : x
  2. Step 2: Convert to fraction form
    217,844.20/326,766.30 = 77,607.40/x
  3. Step 3: Cross multiply
    217,844.20x = 326,766.30 × 77,607.40
  4. Step 4: Simplify right side
    217,844.20x = 25,359,482,950.62
  5. Step 5: Solve for x
    x = 25,359,482,950.62/217,844.20
  6. Step 6: Final answer
    x = 116,411.10

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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.