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Finding the Fourth Proportional to 434.85, 652.60 and 348.94

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Solution

The fourth proportional to 434.85, 652.60 and 348.94 is: 523.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    434.85 : 652.60 = 348.94 : x
  2. Step 2: Convert to fraction form
    434.85/652.60 = 348.94/x
  3. Step 3: Cross multiply
    434.85x = 652.60 × 348.94
  4. Step 4: Simplify right side
    434.85x = 227,718.24
  5. Step 5: Solve for x
    x = 227,718.24/434.85
  6. Step 6: Final answer
    x = 523.67

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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.