Home / 259,466.19-389,215.68-109,686.76

Finding the Fourth Proportional to 259,466.19, 389,215.68 and 109,686.76

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Solution

The fourth proportional to 259,466.19, 389,215.68 and 109,686.76 is: 164,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,466.19 : 389,215.68 = 109,686.76 : x
  2. Step 2: Convert to fraction form
    259,466.19/389,215.68 = 109,686.76/x
  3. Step 3: Cross multiply
    259,466.19x = 389,215.68 × 109,686.76
  4. Step 4: Simplify right side
    259,466.19x = 42,691,806,113.02
  5. Step 5: Solve for x
    x = 42,691,806,113.02/259,466.19
  6. Step 6: Final answer
    x = 164,537.07

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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.