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Finding the Fourth Proportional to 910.83, 1,366.11 and 333.71

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Solution

The fourth proportional to 910.83, 1,366.11 and 333.71 is: 500.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.83 : 1,366.11 = 333.71 : x
  2. Step 2: Convert to fraction form
    910.83/1,366.11 = 333.71/x
  3. Step 3: Cross multiply
    910.83x = 1,366.11 × 333.71
  4. Step 4: Simplify right side
    910.83x = 455,877.74
  5. Step 5: Solve for x
    x = 455,877.74/910.83
  6. Step 6: Final answer
    x = 500.51

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.