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Finding the Fourth Proportional to 358,995.11, 495,497.68 and 223,131.67

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Solution

The fourth proportional to 358,995.11, 495,497.68 and 223,131.67 is: 307,974.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,995.11 : 495,497.68 = 223,131.67 : x
  2. Step 2: Convert to fraction form
    358,995.11/495,497.68 = 223,131.67/x
  3. Step 3: Cross multiply
    358,995.11x = 495,497.68 × 223,131.67
  4. Step 4: Simplify right side
    358,995.11x = 110,561,221,226.38
  5. Step 5: Solve for x
    x = 110,561,221,226.38/358,995.11
  6. Step 6: Final answer
    x = 307,974.17

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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.