Home / 331,431.68-457,230.12-223,962.56

Finding the Fourth Proportional to 331,431.68, 457,230.12 and 223,962.56

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Solution

The fourth proportional to 331,431.68, 457,230.12 and 223,962.56 is: 308,969.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,431.68 : 457,230.12 = 223,962.56 : x
  2. Step 2: Convert to fraction form
    331,431.68/457,230.12 = 223,962.56/x
  3. Step 3: Cross multiply
    331,431.68x = 457,230.12 × 223,962.56
  4. Step 4: Simplify right side
    331,431.68x = 102,402,428,184.31
  5. Step 5: Solve for x
    x = 102,402,428,184.31/331,431.68
  6. Step 6: Final answer
    x = 308,969.95

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1.5x scale

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.