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Finding the Fourth Proportional to 1,060.55, 1,590.50 and 367.19

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Solution

The fourth proportional to 1,060.55, 1,590.50 and 367.19 is: 550.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.55 : 1,590.50 = 367.19 : x
  2. Step 2: Convert to fraction form
    1,060.55/1,590.50 = 367.19/x
  3. Step 3: Cross multiply
    1,060.55x = 1,590.50 × 367.19
  4. Step 4: Simplify right side
    1,060.55x = 584,005.91
  5. Step 5: Solve for x
    x = 584,005.91/1,060.55
  6. Step 6: Final answer
    x = 550.67

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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.