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Finding the Fourth Proportional to 243,353.55, 335,824.33 and 135,925.15

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Solution

The fourth proportional to 243,353.55, 335,824.33 and 135,925.15 is: 187,574.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,353.55 : 335,824.33 = 135,925.15 : x
  2. Step 2: Convert to fraction form
    243,353.55/335,824.33 = 135,925.15/x
  3. Step 3: Cross multiply
    243,353.55x = 335,824.33 × 135,925.15
  4. Step 4: Simplify right side
    243,353.55x = 45,646,971,749.27
  5. Step 5: Solve for x
    x = 45,646,971,749.27/243,353.55
  6. Step 6: Final answer
    x = 187,574.71

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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.