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Finding the Fourth Proportional to 570.34, 856.13 and 245.94

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Solution

The fourth proportional to 570.34, 856.13 and 245.94 is: 369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    570.34 : 856.13 = 245.94 : x
  2. Step 2: Convert to fraction form
    570.34/856.13 = 245.94/x
  3. Step 3: Cross multiply
    570.34x = 856.13 × 245.94
  4. Step 4: Simplify right side
    570.34x = 210,556.61
  5. Step 5: Solve for x
    x = 210,556.61/570.34
  6. Step 6: Final answer
    x = 369.18

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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.