Home / 215,837.10-323,901.45-140,774.40

Finding the Fourth Proportional to 215,837.10, 323,901.45 and 140,774.40

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Solution

The fourth proportional to 215,837.10, 323,901.45 and 140,774.40 is: 211,256.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,837.10 : 323,901.45 = 140,774.40 : x
  2. Step 2: Convert to fraction form
    215,837.10/323,901.45 = 140,774.40/x
  3. Step 3: Cross multiply
    215,837.10x = 323,901.45 × 140,774.40
  4. Step 4: Simplify right side
    215,837.10x = 45,597,032,282.88
  5. Step 5: Solve for x
    x = 45,597,032,282.88/215,837.10
  6. Step 6: Final answer
    x = 211,256.69

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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.