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Finding the Fourth Proportional to 581.16, 870.96 and 306.96

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Solution

The fourth proportional to 581.16, 870.96 and 306.96 is: 460.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.16 : 870.96 = 306.96 : x
  2. Step 2: Convert to fraction form
    581.16/870.96 = 306.96/x
  3. Step 3: Cross multiply
    581.16x = 870.96 × 306.96
  4. Step 4: Simplify right side
    581.16x = 267,349.88
  5. Step 5: Solve for x
    x = 267,349.88/581.16
  6. Step 6: Final answer
    x = 460.03

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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.