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Finding the Fourth Proportional to 431.45, 595.67 and 265.89

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Solution

The fourth proportional to 431.45, 595.67 and 265.89 is: 367.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    431.45 : 595.67 = 265.89 : x
  2. Step 2: Convert to fraction form
    431.45/595.67 = 265.89/x
  3. Step 3: Cross multiply
    431.45x = 595.67 × 265.89
  4. Step 4: Simplify right side
    431.45x = 158,378.39
  5. Step 5: Solve for x
    x = 158,378.39/431.45
  6. Step 6: Final answer
    x = 367.08

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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.