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Finding the Fourth Proportional to 345,011.70, 517,623.45 and 176,650.25

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Solution

The fourth proportional to 345,011.70, 517,623.45 and 176,650.25 is: 265,029.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,011.70 : 517,623.45 = 176,650.25 : x
  2. Step 2: Convert to fraction form
    345,011.70/517,623.45 = 176,650.25/x
  3. Step 3: Cross multiply
    345,011.70x = 517,623.45 × 176,650.25
  4. Step 4: Simplify right side
    345,011.70x = 91,438,309,260.25
  5. Step 5: Solve for x
    x = 91,438,309,260.25/345,011.70
  6. Step 6: Final answer
    x = 265,029.59

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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.