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Finding the Fourth Proportional to 590.96, 815.50 and 369.90

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Solution

The fourth proportional to 590.96, 815.50 and 369.90 is: 510.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    590.96 : 815.50 = 369.90 : x
  2. Step 2: Convert to fraction form
    590.96/815.50 = 369.90/x
  3. Step 3: Cross multiply
    590.96x = 815.50 × 369.90
  4. Step 4: Simplify right side
    590.96x = 301,653.91
  5. Step 5: Solve for x
    x = 301,653.91/590.96
  6. Step 6: Final answer
    x = 510.45

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.