Home / 257,674.18-386,507.43-89,317.06

Finding the Fourth Proportional to 257,674.18, 386,507.43 and 89,317.06

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Solution

The fourth proportional to 257,674.18, 386,507.43 and 89,317.06 is: 133,974.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,674.18 : 386,507.43 = 89,317.06 : x
  2. Step 2: Convert to fraction form
    257,674.18/386,507.43 = 89,317.06/x
  3. Step 3: Cross multiply
    257,674.18x = 386,507.43 × 89,317.06
  4. Step 4: Simplify right side
    257,674.18x = 34,521,707,315.76
  5. Step 5: Solve for x
    x = 34,521,707,315.76/257,674.18
  6. Step 6: Final answer
    x = 133,974.26

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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.