Home / 278,825.23-384,781.16-151,500.82

Finding the Fourth Proportional to 278,825.23, 384,781.16 and 151,500.82

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Solution

The fourth proportional to 278,825.23, 384,781.16 and 151,500.82 is: 209,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,825.23 : 384,781.16 = 151,500.82 : x
  2. Step 2: Convert to fraction form
    278,825.23/384,781.16 = 151,500.82/x
  3. Step 3: Cross multiply
    278,825.23x = 384,781.16 × 151,500.82
  4. Step 4: Simplify right side
    278,825.23x = 58,294,661,260.55
  5. Step 5: Solve for x
    x = 58,294,661,260.55/278,825.23
  6. Step 6: Final answer
    x = 209,072.40

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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.