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Finding the Fourth Proportional to 217,141.15, 325,714.16 and 90,800.59

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Solution

The fourth proportional to 217,141.15, 325,714.16 and 90,800.59 is: 136,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,141.15 : 325,714.16 = 90,800.59 : x
  2. Step 2: Convert to fraction form
    217,141.15/325,714.16 = 90,800.59/x
  3. Step 3: Cross multiply
    217,141.15x = 325,714.16 × 90,800.59
  4. Step 4: Simplify right side
    217,141.15x = 29,575,037,445.35
  5. Step 5: Solve for x
    x = 29,575,037,445.35/217,141.15
  6. Step 6: Final answer
    x = 136,201.90

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1.5x scale

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.