Home / 385,972.68-579,014.88-146,021.52

Finding the Fourth Proportional to 385,972.68, 579,014.88 and 146,021.52

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Solution

The fourth proportional to 385,972.68, 579,014.88 and 146,021.52 is: 219,053.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,972.68 : 579,014.88 = 146,021.52 : x
  2. Step 2: Convert to fraction form
    385,972.68/579,014.88 = 146,021.52/x
  3. Step 3: Cross multiply
    385,972.68x = 579,014.88 × 146,021.52
  4. Step 4: Simplify right side
    385,972.68x = 84,548,632,880.22
  5. Step 5: Solve for x
    x = 84,548,632,880.22/385,972.68
  6. Step 6: Final answer
    x = 219,053.41

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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.