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Finding the Fourth Proportional to 910.67, 1,366.01 and 294.32

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Solution

The fourth proportional to 910.67, 1,366.01 and 294.32 is: 441.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    910.67 : 1,366.01 = 294.32 : x
  2. Step 2: Convert to fraction form
    910.67/1,366.01 = 294.32/x
  3. Step 3: Cross multiply
    910.67x = 1,366.01 × 294.32
  4. Step 4: Simplify right side
    910.67x = 402,048.77
  5. Step 5: Solve for x
    x = 402,048.77/910.67
  6. Step 6: Final answer
    x = 441.49

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Half scale
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Double scale
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Similar ratio
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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.