Home / 257,925.05-387,292.03-218,461.31

Finding the Fourth Proportional to 257,925.05, 387,292.03 and 218,461.31

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Solution

The fourth proportional to 257,925.05, 387,292.03 and 218,461.31 is: 328,034.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,925.05 : 387,292.03 = 218,461.31 : x
  2. Step 2: Convert to fraction form
    257,925.05/387,292.03 = 218,461.31/x
  3. Step 3: Cross multiply
    257,925.05x = 387,292.03 × 218,461.31
  4. Step 4: Simplify right side
    257,925.05x = 84,608,321,743.75
  5. Step 5: Solve for x
    x = 84,608,321,743.75/257,925.05
  6. Step 6: Final answer
    x = 328,034.53

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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.