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Finding the Fourth Proportional to 326,295.42, 488,863.77 and 136,337.61

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Solution

The fourth proportional to 326,295.42, 488,863.77 and 136,337.61 is: 204,264.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,295.42 : 488,863.77 = 136,337.61 : x
  2. Step 2: Convert to fraction form
    326,295.42/488,863.77 = 136,337.61/x
  3. Step 3: Cross multiply
    326,295.42x = 488,863.77 × 136,337.61
  4. Step 4: Simplify right side
    326,295.42x = 66,650,518,017.39
  5. Step 5: Solve for x
    x = 66,650,518,017.39/326,295.42
  6. Step 6: Final answer
    x = 204,264.34

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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.