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Finding the Fourth Proportional to 356,303.70, 491,699.22 and 195,161.44

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Solution

The fourth proportional to 356,303.70, 491,699.22 and 195,161.44 is: 269,322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,303.70 : 491,699.22 = 195,161.44 : x
  2. Step 2: Convert to fraction form
    356,303.70/491,699.22 = 195,161.44/x
  3. Step 3: Cross multiply
    356,303.70x = 491,699.22 × 195,161.44
  4. Step 4: Simplify right side
    356,303.70x = 95,960,727,822.08
  5. Step 5: Solve for x
    x = 95,960,727,822.08/356,303.70
  6. Step 6: Final answer
    x = 269,322.85

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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.