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Finding the Fourth Proportional to 526.90, 788.98 and 372

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Solution

The fourth proportional to 526.90, 788.98 and 372 is: 557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.90 : 788.98 = 372 : x
  2. Step 2: Convert to fraction form
    526.90/788.98 = 372/x
  3. Step 3: Cross multiply
    526.90x = 788.98 × 372
  4. Step 4: Simplify right side
    526.90x = 293,500.56
  5. Step 5: Solve for x
    x = 293,500.56/526.90
  6. Step 6: Final answer
    x = 557.03

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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.