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Finding the Fourth Proportional to 278,419, 384,218.50 and 151,094.62

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Solution

The fourth proportional to 278,419, 384,218.50 and 151,094.62 is: 208,510.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,419 : 384,218.50 = 151,094.62 : x
  2. Step 2: Convert to fraction form
    278,419/384,218.50 = 151,094.62/x
  3. Step 3: Cross multiply
    278,419x = 384,218.50 × 151,094.62
  4. Step 4: Simplify right side
    278,419x = 58,053,348,254.47
  5. Step 5: Solve for x
    x = 58,053,348,254.47/278,419
  6. Step 6: Final answer
    x = 208,510.73

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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.