Home / 386,920.11-580,352.67-102,604.35

Finding the Fourth Proportional to 386,920.11, 580,352.67 and 102,604.35

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Solution

The fourth proportional to 386,920.11, 580,352.67 and 102,604.35 is: 153,899.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,920.11 : 580,352.67 = 102,604.35 : x
  2. Step 2: Convert to fraction form
    386,920.11/580,352.67 = 102,604.35/x
  3. Step 3: Cross multiply
    386,920.11x = 580,352.67 × 102,604.35
  4. Step 4: Simplify right side
    386,920.11x = 59,546,708,476.11
  5. Step 5: Solve for x
    x = 59,546,708,476.11/386,920.11
  6. Step 6: Final answer
    x = 153,899.23

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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.