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Finding the Fourth Proportional to 328,308.55, 452,961.56 and 259,178.85

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Solution

The fourth proportional to 328,308.55, 452,961.56 and 259,178.85 is: 357,584.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,308.55 : 452,961.56 = 259,178.85 : x
  2. Step 2: Convert to fraction form
    328,308.55/452,961.56 = 259,178.85/x
  3. Step 3: Cross multiply
    328,308.55x = 452,961.56 × 259,178.85
  4. Step 4: Simplify right side
    328,308.55x = 117,398,056,862.95
  5. Step 5: Solve for x
    x = 117,398,056,862.95/328,308.55
  6. Step 6: Final answer
    x = 357,584.53

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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.