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Finding the Fourth Proportional to 251,806.80, 378,001.80 and 152,079.60

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Solution

The fourth proportional to 251,806.80, 378,001.80 and 152,079.60 is: 228,295.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,806.80 : 378,001.80 = 152,079.60 : x
  2. Step 2: Convert to fraction form
    251,806.80/378,001.80 = 152,079.60/x
  3. Step 3: Cross multiply
    251,806.80x = 378,001.80 × 152,079.60
  4. Step 4: Simplify right side
    251,806.80x = 57,486,362,543.28
  5. Step 5: Solve for x
    x = 57,486,362,543.28/251,806.80
  6. Step 6: Final answer
    x = 228,295.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.