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Finding the Fourth Proportional to 526.88, 790.59 and 270.38

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Solution

The fourth proportional to 526.88, 790.59 and 270.38 is: 405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.88 : 790.59 = 270.38 : x
  2. Step 2: Convert to fraction form
    526.88/790.59 = 270.38/x
  3. Step 3: Cross multiply
    526.88x = 790.59 × 270.38
  4. Step 4: Simplify right side
    526.88x = 213,755.77
  5. Step 5: Solve for x
    x = 213,755.77/526.88
  6. Step 6: Final answer
    x = 405.70

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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.