Home / 345,979.84-519,039.78-146,299.92

Finding the Fourth Proportional to 345,979.84, 519,039.78 and 146,299.92

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Solution

The fourth proportional to 345,979.84, 519,039.78 and 146,299.92 is: 219,479.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,979.84 : 519,039.78 = 146,299.92 : x
  2. Step 2: Convert to fraction form
    345,979.84/519,039.78 = 146,299.92/x
  3. Step 3: Cross multiply
    345,979.84x = 519,039.78 × 146,299.92
  4. Step 4: Simplify right side
    345,979.84x = 75,935,478,290.82
  5. Step 5: Solve for x
    x = 75,935,478,290.82/345,979.84
  6. Step 6: Final answer
    x = 219,479.49

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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.