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Finding the Fourth Proportional to 224,643.08, 310,023.78 and 129,179.72

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Solution

The fourth proportional to 224,643.08, 310,023.78 and 129,179.72 is: 178,277.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,643.08 : 310,023.78 = 129,179.72 : x
  2. Step 2: Convert to fraction form
    224,643.08/310,023.78 = 129,179.72/x
  3. Step 3: Cross multiply
    224,643.08x = 310,023.78 × 129,179.72
  4. Step 4: Simplify right side
    224,643.08x = 40,048,785,093.74
  5. Step 5: Solve for x
    x = 40,048,785,093.74/224,643.08
  6. Step 6: Final answer
    x = 178,277.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.