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Finding the Fourth Proportional to 358,850.20, 495,284.99 and 205,991.72

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Solution

The fourth proportional to 358,850.20, 495,284.99 and 205,991.72 is: 284,309.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,850.20 : 495,284.99 = 205,991.72 : x
  2. Step 2: Convert to fraction form
    358,850.20/495,284.99 = 205,991.72/x
  3. Step 3: Cross multiply
    358,850.20x = 495,284.99 × 205,991.72
  4. Step 4: Simplify right side
    358,850.20x = 102,024,605,950.32
  5. Step 5: Solve for x
    x = 102,024,605,950.32/358,850.20
  6. Step 6: Final answer
    x = 284,309.74

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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.