Home / 385,575.26-532,100.43-211,160.79

Finding the Fourth Proportional to 385,575.26, 532,100.43 and 211,160.79

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Solution

The fourth proportional to 385,575.26, 532,100.43 and 211,160.79 is: 291,405.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,575.26 : 532,100.43 = 211,160.79 : x
  2. Step 2: Convert to fraction form
    385,575.26/532,100.43 = 211,160.79/x
  3. Step 3: Cross multiply
    385,575.26x = 532,100.43 × 211,160.79
  4. Step 4: Simplify right side
    385,575.26x = 112,358,747,158.14
  5. Step 5: Solve for x
    x = 112,358,747,158.14/385,575.26
  6. Step 6: Final answer
    x = 291,405.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.