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Finding the Fourth Proportional to 202,251.72, 279,162.90 and 117,396.12

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Solution

The fourth proportional to 202,251.72, 279,162.90 and 117,396.12 is: 162,038.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,251.72 : 279,162.90 = 117,396.12 : x
  2. Step 2: Convert to fraction form
    202,251.72/279,162.90 = 117,396.12/x
  3. Step 3: Cross multiply
    202,251.72x = 279,162.90 × 117,396.12
  4. Step 4: Simplify right side
    202,251.72x = 32,772,641,307.95
  5. Step 5: Solve for x
    x = 32,772,641,307.95/202,251.72
  6. Step 6: Final answer
    x = 162,038.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.