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Finding the Fourth Proportional to 217,072.32, 325,336.32 and 123,630.72

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Solution

The fourth proportional to 217,072.32, 325,336.32 and 123,630.72 is: 185,291.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,072.32 : 325,336.32 = 123,630.72 : x
  2. Step 2: Convert to fraction form
    217,072.32/325,336.32 = 123,630.72/x
  3. Step 3: Cross multiply
    217,072.32x = 325,336.32 × 123,630.72
  4. Step 4: Simplify right side
    217,072.32x = 40,221,563,483.75
  5. Step 5: Solve for x
    x = 40,221,563,483.75/217,072.32
  6. Step 6: Final answer
    x = 185,291.07

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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.