Home / 345,315.24-517,836.78-167,769.72

Finding the Fourth Proportional to 345,315.24, 517,836.78 and 167,769.72

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Solution

The fourth proportional to 345,315.24, 517,836.78 and 167,769.72 is: 251,588.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,315.24 : 517,836.78 = 167,769.72 : x
  2. Step 2: Convert to fraction form
    345,315.24/517,836.78 = 167,769.72/x
  3. Step 3: Cross multiply
    345,315.24x = 517,836.78 × 167,769.72
  4. Step 4: Simplify right side
    345,315.24x = 86,877,331,586.30
  5. Step 5: Solve for x
    x = 86,877,331,586.30/345,315.24
  6. Step 6: Final answer
    x = 251,588.47

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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.