Home / 385,467.26-577,868.31-185,512.55

Finding the Fourth Proportional to 385,467.26, 577,868.31 and 185,512.55

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Solution

The fourth proportional to 385,467.26, 577,868.31 and 185,512.55 is: 278,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,467.26 : 577,868.31 = 185,512.55 : x
  2. Step 2: Convert to fraction form
    385,467.26/577,868.31 = 185,512.55/x
  3. Step 3: Cross multiply
    385,467.26x = 577,868.31 × 185,512.55
  4. Step 4: Simplify right side
    385,467.26x = 107,201,820,862.95
  5. Step 5: Solve for x
    x = 107,201,820,862.95/385,467.26
  6. Step 6: Final answer
    x = 278,108.76

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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.