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Finding the Fourth Proportional to 328,285.70, 452,957.10 and 199,221.26

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Solution

The fourth proportional to 328,285.70, 452,957.10 and 199,221.26 is: 274,878.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,285.70 : 452,957.10 = 199,221.26 : x
  2. Step 2: Convert to fraction form
    328,285.70/452,957.10 = 199,221.26/x
  3. Step 3: Cross multiply
    328,285.70x = 452,957.10 × 199,221.26
  4. Step 4: Simplify right side
    328,285.70x = 90,238,681,923.16
  5. Step 5: Solve for x
    x = 90,238,681,923.16/328,285.70
  6. Step 6: Final answer
    x = 274,878.51

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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.