Home / 385,012.52-577,601.20-115,161.84

Finding the Fourth Proportional to 385,012.52, 577,601.20 and 115,161.84

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Solution

The fourth proportional to 385,012.52, 577,601.20 and 115,161.84 is: 172,767.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,012.52 : 577,601.20 = 115,161.84 : x
  2. Step 2: Convert to fraction form
    385,012.52/577,601.20 = 115,161.84/x
  3. Step 3: Cross multiply
    385,012.52x = 577,601.20 × 115,161.84
  4. Step 4: Simplify right side
    385,012.52x = 66,517,616,978.21
  5. Step 5: Solve for x
    x = 66,517,616,978.21/385,012.52
  6. Step 6: Final answer
    x = 172,767.41

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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.