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Finding the Fourth Proportional to 335,810.40, 503,278.20 and 135,967.20

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Solution

The fourth proportional to 335,810.40, 503,278.20 and 135,967.20 is: 203,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,810.40 : 503,278.20 = 135,967.20 : x
  2. Step 2: Convert to fraction form
    335,810.40/503,278.20 = 135,967.20/x
  3. Step 3: Cross multiply
    335,810.40x = 503,278.20 × 135,967.20
  4. Step 4: Simplify right side
    335,810.40x = 68,429,327,675.04
  5. Step 5: Solve for x
    x = 68,429,327,675.04/335,810.40
  6. Step 6: Final answer
    x = 203,773.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.