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Finding the Fourth Proportional to 181,261.70, 250,100.90 and 109,640.20

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Solution

The fourth proportional to 181,261.70, 250,100.90 and 109,640.20 is: 151,279.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,261.70 : 250,100.90 = 109,640.20 : x
  2. Step 2: Convert to fraction form
    181,261.70/250,100.90 = 109,640.20/x
  3. Step 3: Cross multiply
    181,261.70x = 250,100.90 × 109,640.20
  4. Step 4: Simplify right side
    181,261.70x = 27,421,112,696.18
  5. Step 5: Solve for x
    x = 27,421,112,696.18/181,261.70
  6. Step 6: Final answer
    x = 151,279.13

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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.