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Finding the Fourth Proportional to 356,154.30, 491,492.87 and 195,009.32

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Solution

The fourth proportional to 356,154.30, 491,492.87 and 195,009.32 is: 269,112.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,154.30 : 491,492.87 = 195,009.32 : x
  2. Step 2: Convert to fraction form
    356,154.30/491,492.87 = 195,009.32/x
  3. Step 3: Cross multiply
    356,154.30x = 491,492.87 × 195,009.32
  4. Step 4: Simplify right side
    356,154.30x = 95,845,690,363.55
  5. Step 5: Solve for x
    x = 95,845,690,363.55/356,154.30
  6. Step 6: Final answer
    x = 269,112.83

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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.