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Finding the Fourth Proportional to 203.19, 302.59 and 190.53

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Solution

The fourth proportional to 203.19, 302.59 and 190.53 is: 283.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.19 : 302.59 = 190.53 : x
  2. Step 2: Convert to fraction form
    203.19/302.59 = 190.53/x
  3. Step 3: Cross multiply
    203.19x = 302.59 × 190.53
  4. Step 4: Simplify right side
    203.19x = 57,652.71
  5. Step 5: Solve for x
    x = 57,652.71/203.19
  6. Step 6: Final answer
    x = 283.74

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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.