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Finding the Fourth Proportional to 358,340.64, 494,344.64 and 231,057.12

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Solution

The fourth proportional to 358,340.64, 494,344.64 and 231,057.12 is: 318,752.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,340.64 : 494,344.64 = 231,057.12 : x
  2. Step 2: Convert to fraction form
    358,340.64/494,344.64 = 231,057.12/x
  3. Step 3: Cross multiply
    358,340.64x = 494,344.64 × 231,057.12
  4. Step 4: Simplify right side
    358,340.64x = 114,221,848,805.84
  5. Step 5: Solve for x
    x = 114,221,848,805.84/358,340.64
  6. Step 6: Final answer
    x = 318,752.15

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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.