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Finding the Fourth Proportional to 570.09, 854.65 and 262.09

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Solution

The fourth proportional to 570.09, 854.65 and 262.09 is: 392.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.09 : 854.65 = 262.09 : x
  2. Step 2: Convert to fraction form
    570.09/854.65 = 262.09/x
  3. Step 3: Cross multiply
    570.09x = 854.65 × 262.09
  4. Step 4: Simplify right side
    570.09x = 223,995.22
  5. Step 5: Solve for x
    x = 223,995.22/570.09
  6. Step 6: Final answer
    x = 392.91

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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.