Home / 217,433.60-326,150.40-124,121.60

Finding the Fourth Proportional to 217,433.60, 326,150.40 and 124,121.60

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Solution

The fourth proportional to 217,433.60, 326,150.40 and 124,121.60 is: 186,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,433.60 : 326,150.40 = 124,121.60 : x
  2. Step 2: Convert to fraction form
    217,433.60/326,150.40 = 124,121.60/x
  3. Step 3: Cross multiply
    217,433.60x = 326,150.40 × 124,121.60
  4. Step 4: Simplify right side
    217,433.60x = 40,482,309,488.64
  5. Step 5: Solve for x
    x = 40,482,309,488.64/217,433.60
  6. Step 6: Final answer
    x = 186,182.40

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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.