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Finding the Fourth Proportional to 930.18, 1,394.28 and 467.22

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Solution

The fourth proportional to 930.18, 1,394.28 and 467.22 is: 700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    930.18 : 1,394.28 = 467.22 : x
  2. Step 2: Convert to fraction form
    930.18/1,394.28 = 467.22/x
  3. Step 3: Cross multiply
    930.18x = 1,394.28 × 467.22
  4. Step 4: Simplify right side
    930.18x = 651,435.50
  5. Step 5: Solve for x
    x = 651,435.50/930.18
  6. Step 6: Final answer
    x = 700.33

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Half scale
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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.