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Finding the Fourth Proportional to 906.73, 1,360.10 and 358.99

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Solution

The fourth proportional to 906.73, 1,360.10 and 358.99 is: 538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    906.73 : 1,360.10 = 358.99 : x
  2. Step 2: Convert to fraction form
    906.73/1,360.10 = 358.99/x
  3. Step 3: Cross multiply
    906.73x = 1,360.10 × 358.99
  4. Step 4: Simplify right side
    906.73x = 488,260.50
  5. Step 5: Solve for x
    x = 488,260.50/906.73
  6. Step 6: Final answer
    x = 538.49

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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.