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Finding the Fourth Proportional to 402.98, 601.55 and 372.92

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Solution

The fourth proportional to 402.98, 601.55 and 372.92 is: 556.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    402.98 : 601.55 = 372.92 : x
  2. Step 2: Convert to fraction form
    402.98/601.55 = 372.92/x
  3. Step 3: Cross multiply
    402.98x = 601.55 × 372.92
  4. Step 4: Simplify right side
    402.98x = 224,328.16
  5. Step 5: Solve for x
    x = 224,328.16/402.98
  6. Step 6: Final answer
    x = 556.67

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.