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Finding the Fourth Proportional to 310,377.16, 428,306.68 and 181,327.60

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Solution

The fourth proportional to 310,377.16, 428,306.68 and 181,327.60 is: 250,224.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,377.16 : 428,306.68 = 181,327.60 : x
  2. Step 2: Convert to fraction form
    310,377.16/428,306.68 = 181,327.60/x
  3. Step 3: Cross multiply
    310,377.16x = 428,306.68 × 181,327.60
  4. Step 4: Simplify right side
    310,377.16x = 77,663,822,348.37
  5. Step 5: Solve for x
    x = 77,663,822,348.37/310,377.16
  6. Step 6: Final answer
    x = 250,224.03

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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.