Home / 389,232.78-537,049.64-236,267.21

Finding the Fourth Proportional to 389,232.78, 537,049.64 and 236,267.21

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Solution

The fourth proportional to 389,232.78, 537,049.64 and 236,267.21 is: 325,993.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,232.78 : 537,049.64 = 236,267.21 : x
  2. Step 2: Convert to fraction form
    389,232.78/537,049.64 = 236,267.21/x
  3. Step 3: Cross multiply
    389,232.78x = 537,049.64 × 236,267.21
  4. Step 4: Simplify right side
    389,232.78x = 126,887,222,007.60
  5. Step 5: Solve for x
    x = 126,887,222,007.60/389,232.78
  6. Step 6: Final answer
    x = 325,993.16

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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.