Home / 283,945.44-427,876.86-257,290.20

Finding the Fourth Proportional to 283,945.44, 427,876.86 and 257,290.20

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Solution

The fourth proportional to 283,945.44, 427,876.86 and 257,290.20 is: 387,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,945.44 : 427,876.86 = 257,290.20 : x
  2. Step 2: Convert to fraction form
    283,945.44/427,876.86 = 257,290.20/x
  3. Step 3: Cross multiply
    283,945.44x = 427,876.86 × 257,290.20
  4. Step 4: Simplify right side
    283,945.44x = 110,088,522,884.77
  5. Step 5: Solve for x
    x = 110,088,522,884.77/283,945.44
  6. Step 6: Final answer
    x = 387,710.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.