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Finding the Fourth Proportional to 331,886.40, 497,740.32 and 121,525.44

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Solution

The fourth proportional to 331,886.40, 497,740.32 and 121,525.44 is: 182,255.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,886.40 : 497,740.32 = 121,525.44 : x
  2. Step 2: Convert to fraction form
    331,886.40/497,740.32 = 121,525.44/x
  3. Step 3: Cross multiply
    331,886.40x = 497,740.32 × 121,525.44
  4. Step 4: Simplify right side
    331,886.40x = 60,488,111,393.74
  5. Step 5: Solve for x
    x = 60,488,111,393.74/331,886.40
  6. Step 6: Final answer
    x = 182,255.47

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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.