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Finding the Fourth Proportional to 383.04, 570.88 and 372.80

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Solution

The fourth proportional to 383.04, 570.88 and 372.80 is: 555.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    383.04 : 570.88 = 372.80 : x
  2. Step 2: Convert to fraction form
    383.04/570.88 = 372.80/x
  3. Step 3: Cross multiply
    383.04x = 570.88 × 372.80
  4. Step 4: Simplify right side
    383.04x = 212,824.06
  5. Step 5: Solve for x
    x = 212,824.06/383.04
  6. Step 6: Final answer
    x = 555.62

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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.