Home / 290,261.20-400,643.94-175,540

Finding the Fourth Proportional to 290,261.20, 400,643.94 and 175,540

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Solution

The fourth proportional to 290,261.20, 400,643.94 and 175,540 is: 242,295.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,261.20 : 400,643.94 = 175,540 : x
  2. Step 2: Convert to fraction form
    290,261.20/400,643.94 = 175,540/x
  3. Step 3: Cross multiply
    290,261.20x = 400,643.94 × 175,540
  4. Step 4: Simplify right side
    290,261.20x = 70,329,037,227.60
  5. Step 5: Solve for x
    x = 70,329,037,227.60/290,261.20
  6. Step 6: Final answer
    x = 242,295.69

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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.