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Finding the Fourth Proportional to 352, 526.56 and 253.90

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Solution

The fourth proportional to 352, 526.56 and 253.90 is: 379.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    352 : 526.56 = 253.90 : x
  2. Step 2: Convert to fraction form
    352/526.56 = 253.90/x
  3. Step 3: Cross multiply
    352x = 526.56 × 253.90
  4. Step 4: Simplify right side
    352x = 133,693.58
  5. Step 5: Solve for x
    x = 133,693.58/352
  6. Step 6: Final answer
    x = 379.81

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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.