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Finding the Fourth Proportional to 357.71, 537.48 and 347.67

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Solution

The fourth proportional to 357.71, 537.48 and 347.67 is: 522.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    357.71 : 537.48 = 347.67 : x
  2. Step 2: Convert to fraction form
    357.71/537.48 = 347.67/x
  3. Step 3: Cross multiply
    357.71x = 537.48 × 347.67
  4. Step 4: Simplify right side
    357.71x = 186,865.67
  5. Step 5: Solve for x
    x = 186,865.67/357.71
  6. Step 6: Final answer
    x = 522.40

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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.