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Finding the Fourth Proportional to 202.40, 303.62 and 58.10

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Solution

The fourth proportional to 202.40, 303.62 and 58.10 is: 87.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202.40 : 303.62 = 58.10 : x
  2. Step 2: Convert to fraction form
    202.40/303.62 = 58.10/x
  3. Step 3: Cross multiply
    202.40x = 303.62 × 58.10
  4. Step 4: Simplify right side
    202.40x = 17,640.32
  5. Step 5: Solve for x
    x = 17,640.32/202.40
  6. Step 6: Final answer
    x = 87.16

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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.