Home / 345,448.50-517,950.09-145,715.46

Finding the Fourth Proportional to 345,448.50, 517,950.09 and 145,715.46

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Solution

The fourth proportional to 345,448.50, 517,950.09 and 145,715.46 is: 218,479.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,448.50 : 517,950.09 = 145,715.46 : x
  2. Step 2: Convert to fraction form
    345,448.50/517,950.09 = 145,715.46/x
  3. Step 3: Cross multiply
    345,448.50x = 517,950.09 × 145,715.46
  4. Step 4: Simplify right side
    345,448.50x = 75,473,335,621.39
  5. Step 5: Solve for x
    x = 75,473,335,621.39/345,448.50
  6. Step 6: Final answer
    x = 218,479.27

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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.