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Finding the Fourth Proportional to 224,640.82, 310,072.98 and 138,626.12

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Solution

The fourth proportional to 224,640.82, 310,072.98 and 138,626.12 is: 191,346.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,640.82 : 310,072.98 = 138,626.12 : x
  2. Step 2: Convert to fraction form
    224,640.82/310,072.98 = 138,626.12/x
  3. Step 3: Cross multiply
    224,640.82x = 310,072.98 × 138,626.12
  4. Step 4: Simplify right side
    224,640.82x = 42,984,214,134.24
  5. Step 5: Solve for x
    x = 42,984,214,134.24/224,640.82
  6. Step 6: Final answer
    x = 191,346.41

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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.