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Finding the Fourth Proportional to 328,191.67, 452,988.78 and 213,755.48

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Solution

The fourth proportional to 328,191.67, 452,988.78 and 213,755.48 is: 295,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,191.67 : 452,988.78 = 213,755.48 : x
  2. Step 2: Convert to fraction form
    328,191.67/452,988.78 = 213,755.48/x
  3. Step 3: Cross multiply
    328,191.67x = 452,988.78 × 213,755.48
  4. Step 4: Simplify right side
    328,191.67x = 96,828,832,735.70
  5. Step 5: Solve for x
    x = 96,828,832,735.70/328,191.67
  6. Step 6: Final answer
    x = 295,037.45

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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.