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Finding the Fourth Proportional to 586.59, 880.19 and 261.98

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Solution

The fourth proportional to 586.59, 880.19 and 261.98 is: 393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    586.59 : 880.19 = 261.98 : x
  2. Step 2: Convert to fraction form
    586.59/880.19 = 261.98/x
  3. Step 3: Cross multiply
    586.59x = 880.19 × 261.98
  4. Step 4: Simplify right side
    586.59x = 230,590.87
  5. Step 5: Solve for x
    x = 230,590.87/586.59
  6. Step 6: Final answer
    x = 393.10

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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.