Home / 389,846.14-538,034.35-236,909.32

Finding the Fourth Proportional to 389,846.14, 538,034.35 and 236,909.32

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Solution

The fourth proportional to 389,846.14, 538,034.35 and 236,909.32 is: 326,963.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,846.14 : 538,034.35 = 236,909.32 : x
  2. Step 2: Convert to fraction form
    389,846.14/538,034.35 = 236,909.32/x
  3. Step 3: Cross multiply
    389,846.14x = 538,034.35 × 236,909.32
  4. Step 4: Simplify right side
    389,846.14x = 127,465,351,995.14
  5. Step 5: Solve for x
    x = 127,465,351,995.14/389,846.14
  6. Step 6: Final answer
    x = 326,963.23

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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.