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Finding the Fourth Proportional to 243,337.01, 335,801.57 and 135,908.60

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Solution

The fourth proportional to 243,337.01, 335,801.57 and 135,908.60 is: 187,551.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,337.01 : 335,801.57 = 135,908.60 : x
  2. Step 2: Convert to fraction form
    243,337.01/335,801.57 = 135,908.60/x
  3. Step 3: Cross multiply
    243,337.01x = 335,801.57 × 135,908.60
  4. Step 4: Simplify right side
    243,337.01x = 45,638,318,897.95
  5. Step 5: Solve for x
    x = 45,638,318,897.95/243,337.01
  6. Step 6: Final answer
    x = 187,551.91

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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.