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Finding the Third Proportional to 358,959.38 and 555,746.63

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Solution

The third proportional to 358,959.38 and 555,746.63 is: 860,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,959.38 : 555,746.63 = 555,746.63 : x
  2. Step 2: Convert to fraction form
    358,959.38/555,746.63 = 555,746.63/x
  3. Step 3: Cross multiply
    358,959.38x = 555,746.63 × 555,746.63
  4. Step 4: Simplify right side
    358,959.38x = 308,854,311,198.89
  5. Step 5: Solve for x
    x = 308,854,311,198.89/358,959.38
  6. Step 6: Final answer
    x = 860,415.78

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.