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Finding the Fourth Proportional to 243,005.67, 335,348.04 and 135,575.73

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Solution

The fourth proportional to 243,005.67, 335,348.04 and 135,575.73 is: 187,094.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,005.67 : 335,348.04 = 135,575.73 : x
  2. Step 2: Convert to fraction form
    243,005.67/335,348.04 = 135,575.73/x
  3. Step 3: Cross multiply
    243,005.67x = 335,348.04 × 135,575.73
  4. Step 4: Simplify right side
    243,005.67x = 45,465,055,327.07
  5. Step 5: Solve for x
    x = 45,465,055,327.07/243,005.67
  6. Step 6: Final answer
    x = 187,094.63

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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.