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Finding the Fourth Proportional to 303,031.65, 418,171.06 and 165,207.58

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Solution

The fourth proportional to 303,031.65, 418,171.06 and 165,207.58 is: 227,979.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,031.65 : 418,171.06 = 165,207.58 : x
  2. Step 2: Convert to fraction form
    303,031.65/418,171.06 = 165,207.58/x
  3. Step 3: Cross multiply
    303,031.65x = 418,171.06 × 165,207.58
  4. Step 4: Simplify right side
    303,031.65x = 69,085,029,432.64
  5. Step 5: Solve for x
    x = 69,085,029,432.64/303,031.65
  6. Step 6: Final answer
    x = 227,979.59

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1.5x scale

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.