Home / 331,920.72-458,089.29-188,702.19

Finding the Fourth Proportional to 331,920.72, 458,089.29 and 188,702.19

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Solution

The fourth proportional to 331,920.72, 458,089.29 and 188,702.19 is: 260,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,920.72 : 458,089.29 = 188,702.19 : x
  2. Step 2: Convert to fraction form
    331,920.72/458,089.29 = 188,702.19/x
  3. Step 3: Cross multiply
    331,920.72x = 458,089.29 × 188,702.19
  4. Step 4: Simplify right side
    331,920.72x = 86,442,452,238.55
  5. Step 5: Solve for x
    x = 86,442,452,238.55/331,920.72
  6. Step 6: Final answer
    x = 260,431.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.