Home / 393,515.04-543,044.28-223,745.52

Finding the Fourth Proportional to 393,515.04, 543,044.28 and 223,745.52

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Solution

The fourth proportional to 393,515.04, 543,044.28 and 223,745.52 is: 308,765.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,515.04 : 543,044.28 = 223,745.52 : x
  2. Step 2: Convert to fraction form
    393,515.04/543,044.28 = 223,745.52/x
  3. Step 3: Cross multiply
    393,515.04x = 543,044.28 × 223,745.52
  4. Step 4: Simplify right side
    393,515.04x = 121,503,724,811.63
  5. Step 5: Solve for x
    x = 121,503,724,811.63/393,515.04
  6. Step 6: Final answer
    x = 308,765.14

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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.