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Finding the Fourth Proportional to 602.80, 904.20 and 192.24

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Solution

The fourth proportional to 602.80, 904.20 and 192.24 is: 288.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.80 : 904.20 = 192.24 : x
  2. Step 2: Convert to fraction form
    602.80/904.20 = 192.24/x
  3. Step 3: Cross multiply
    602.80x = 904.20 × 192.24
  4. Step 4: Simplify right side
    602.80x = 173,823.41
  5. Step 5: Solve for x
    x = 173,823.41/602.80
  6. Step 6: Final answer
    x = 288.36

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Similar ratio
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1.5x scale

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.