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Finding the Fourth Proportional to 358,864.88, 538,279.38 and 134,208.74

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Solution

The fourth proportional to 358,864.88, 538,279.38 and 134,208.74 is: 201,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,864.88 : 538,279.38 = 134,208.74 : x
  2. Step 2: Convert to fraction form
    358,864.88/538,279.38 = 134,208.74/x
  3. Step 3: Cross multiply
    358,864.88x = 538,279.38 × 134,208.74
  4. Step 4: Simplify right side
    358,864.88x = 72,241,797,357.78
  5. Step 5: Solve for x
    x = 72,241,797,357.78/358,864.88
  6. Step 6: Final answer
    x = 201,306.40

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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.