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Finding the Fourth Proportional to 581.61, 872.04 and 375.96

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Solution

The fourth proportional to 581.61, 872.04 and 375.96 is: 563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    581.61 : 872.04 = 375.96 : x
  2. Step 2: Convert to fraction form
    581.61/872.04 = 375.96/x
  3. Step 3: Cross multiply
    581.61x = 872.04 × 375.96
  4. Step 4: Simplify right side
    581.61x = 327,852.16
  5. Step 5: Solve for x
    x = 327,852.16/581.61
  6. Step 6: Final answer
    x = 563.70

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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.