Home / 245,942.92-339,397.62-138,513.16

Finding the Fourth Proportional to 245,942.92, 339,397.62 and 138,513.16

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Solution

The fourth proportional to 245,942.92, 339,397.62 and 138,513.16 is: 191,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,942.92 : 339,397.62 = 138,513.16 : x
  2. Step 2: Convert to fraction form
    245,942.92/339,397.62 = 138,513.16/x
  3. Step 3: Cross multiply
    245,942.92x = 339,397.62 × 138,513.16
  4. Step 4: Simplify right side
    245,942.92x = 47,011,036,842.68
  5. Step 5: Solve for x
    x = 47,011,036,842.68/245,942.92
  6. Step 6: Final answer
    x = 191,146.13

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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.