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Finding the Fourth Proportional to 921.04, 1,381.52 and 237.04

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Solution

The fourth proportional to 921.04, 1,381.52 and 237.04 is: 355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    921.04 : 1,381.52 = 237.04 : x
  2. Step 2: Convert to fraction form
    921.04/1,381.52 = 237.04/x
  3. Step 3: Cross multiply
    921.04x = 1,381.52 × 237.04
  4. Step 4: Simplify right side
    921.04x = 327,475.50
  5. Step 5: Solve for x
    x = 327,475.50/921.04
  6. Step 6: Final answer
    x = 355.55

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Double scale
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Similar ratio
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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.