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Finding the Fourth Proportional to 404,540.12, 606,908.98 and 134,667.74

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Solution

The fourth proportional to 404,540.12, 606,908.98 and 134,667.74 is: 202,034.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,540.12 : 606,908.98 = 134,667.74 : x
  2. Step 2: Convert to fraction form
    404,540.12/606,908.98 = 134,667.74/x
  3. Step 3: Cross multiply
    404,540.12x = 606,908.98 × 134,667.74
  4. Step 4: Simplify right side
    404,540.12x = 81,731,060,322.23
  5. Step 5: Solve for x
    x = 81,731,060,322.23/404,540.12
  6. Step 6: Final answer
    x = 202,034.50

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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.