Home / 345,106.26-517,710.39-176,721.78

Finding the Fourth Proportional to 345,106.26, 517,710.39 and 176,721.78

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Solution

The fourth proportional to 345,106.26, 517,710.39 and 176,721.78 is: 265,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,106.26 : 517,710.39 = 176,721.78 : x
  2. Step 2: Convert to fraction form
    345,106.26/517,710.39 = 176,721.78/x
  3. Step 3: Cross multiply
    345,106.26x = 517,710.39 × 176,721.78
  4. Step 4: Simplify right side
    345,106.26x = 91,490,701,645.29
  5. Step 5: Solve for x
    x = 91,490,701,645.29/345,106.26
  6. Step 6: Final answer
    x = 265,108.79

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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.