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Finding the Fourth Proportional to 356,165.55, 491,508.40 and 195,020.57

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Solution

The fourth proportional to 356,165.55, 491,508.40 and 195,020.57 is: 269,128.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,165.55 : 491,508.40 = 195,020.57 : x
  2. Step 2: Convert to fraction form
    356,165.55/491,508.40 = 195,020.57/x
  3. Step 3: Cross multiply
    356,165.55x = 491,508.40 × 195,020.57
  4. Step 4: Simplify right side
    356,165.55x = 95,854,248,327.79
  5. Step 5: Solve for x
    x = 95,854,248,327.79/356,165.55
  6. Step 6: Final answer
    x = 269,128.35

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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.