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Finding the Third Proportional to 170,397.91 and 358,423.45

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Solution

The third proportional to 170,397.91 and 358,423.45 is: 753,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,397.91 : 358,423.45 = 358,423.45 : x
  2. Step 2: Convert to fraction form
    170,397.91/358,423.45 = 358,423.45/x
  3. Step 3: Cross multiply
    170,397.91x = 358,423.45 × 358,423.45
  4. Step 4: Simplify right side
    170,397.91x = 128,467,371,750.05
  5. Step 5: Solve for x
    x = 128,467,371,750.05/170,397.91
  6. Step 6: Final answer
    x = 753,925.73

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.