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Finding the Fourth Proportional to 338,667.75, 508,035.65 and 89,349.75

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Solution

The fourth proportional to 338,667.75, 508,035.65 and 89,349.75 is: 134,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,667.75 : 508,035.65 = 89,349.75 : x
  2. Step 2: Convert to fraction form
    338,667.75/508,035.65 = 89,349.75/x
  3. Step 3: Cross multiply
    338,667.75x = 508,035.65 × 89,349.75
  4. Step 4: Simplify right side
    338,667.75x = 45,392,857,871.84
  5. Step 5: Solve for x
    x = 45,392,857,871.84/338,667.75
  6. Step 6: Final answer
    x = 134,033.60

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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.