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Finding the Fourth Proportional to 572.79, 859.33 and 161.93

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Solution

The fourth proportional to 572.79, 859.33 and 161.93 is: 242.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.79 : 859.33 = 161.93 : x
  2. Step 2: Convert to fraction form
    572.79/859.33 = 161.93/x
  3. Step 3: Cross multiply
    572.79x = 859.33 × 161.93
  4. Step 4: Simplify right side
    572.79x = 139,151.31
  5. Step 5: Solve for x
    x = 139,151.31/572.79
  6. Step 6: Final answer
    x = 242.94

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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.