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Finding the Fourth Proportional to 590.79, 886.56 and 266.16

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Solution

The fourth proportional to 590.79, 886.56 and 266.16 is: 399.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.79 : 886.56 = 266.16 : x
  2. Step 2: Convert to fraction form
    590.79/886.56 = 266.16/x
  3. Step 3: Cross multiply
    590.79x = 886.56 × 266.16
  4. Step 4: Simplify right side
    590.79x = 235,966.81
  5. Step 5: Solve for x
    x = 235,966.81/590.79
  6. Step 6: Final answer
    x = 399.41

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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.