Home / 245,941.92-339,396.24-138,512.16

Finding the Fourth Proportional to 245,941.92, 339,396.24 and 138,512.16

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Solution

The fourth proportional to 245,941.92, 339,396.24 and 138,512.16 is: 191,144.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,941.92 : 339,396.24 = 138,512.16 : x
  2. Step 2: Convert to fraction form
    245,941.92/339,396.24 = 138,512.16/x
  3. Step 3: Cross multiply
    245,941.92x = 339,396.24 × 138,512.16
  4. Step 4: Simplify right side
    245,941.92x = 47,010,506,298.28
  5. Step 5: Solve for x
    x = 47,010,506,298.28/245,941.92
  6. Step 6: Final answer
    x = 191,144.75

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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.