Home / 245,864.43-339,289.16-138,434.13

Finding the Fourth Proportional to 245,864.43, 339,289.16 and 138,434.13

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Solution

The fourth proportional to 245,864.43, 339,289.16 and 138,434.13 is: 191,036.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,864.43 : 339,289.16 = 138,434.13 : x
  2. Step 2: Convert to fraction form
    245,864.43/339,289.16 = 138,434.13/x
  3. Step 3: Cross multiply
    245,864.43x = 339,289.16 × 138,434.13
  4. Step 4: Simplify right side
    245,864.43x = 46,969,198,990.86
  5. Step 5: Solve for x
    x = 46,969,198,990.86/245,864.43
  6. Step 6: Final answer
    x = 191,036.98

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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.