Home / 384,825.13-531,059.49-215,059.25

Finding the Fourth Proportional to 384,825.13, 531,059.49 and 215,059.25

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Solution

The fourth proportional to 384,825.13, 531,059.49 and 215,059.25 is: 296,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,825.13 : 531,059.49 = 215,059.25 : x
  2. Step 2: Convert to fraction form
    384,825.13/531,059.49 = 215,059.25/x
  3. Step 3: Cross multiply
    384,825.13x = 531,059.49 × 215,059.25
  4. Step 4: Simplify right side
    384,825.13x = 114,209,256,952.43
  5. Step 5: Solve for x
    x = 114,209,256,952.43/384,825.13
  6. Step 6: Final answer
    x = 296,782.22

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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.