Home / 257,471.06-385,851.20-185,822.51

Finding the Fourth Proportional to 257,471.06, 385,851.20 and 185,822.51

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Solution

The fourth proportional to 257,471.06, 385,851.20 and 185,822.51 is: 278,477.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,471.06 : 385,851.20 = 185,822.51 : x
  2. Step 2: Convert to fraction form
    257,471.06/385,851.20 = 185,822.51/x
  3. Step 3: Cross multiply
    257,471.06x = 385,851.20 × 185,822.51
  4. Step 4: Simplify right side
    257,471.06x = 71,699,835,612.14
  5. Step 5: Solve for x
    x = 71,699,835,612.14/257,471.06
  6. Step 6: Final answer
    x = 278,477.27

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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.