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Finding the Fourth Proportional to 302.77, 454.21 and 97.32

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Solution

The fourth proportional to 302.77, 454.21 and 97.32 is: 146.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.77 : 454.21 = 97.32 : x
  2. Step 2: Convert to fraction form
    302.77/454.21 = 97.32/x
  3. Step 3: Cross multiply
    302.77x = 454.21 × 97.32
  4. Step 4: Simplify right side
    302.77x = 44,203.72
  5. Step 5: Solve for x
    x = 44,203.72/302.77
  6. Step 6: Final answer
    x = 146.00

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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.