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Finding the Fourth Proportional to 152.48, 210.47 and 93.49

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Solution

The fourth proportional to 152.48, 210.47 and 93.49 is: 129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.48 : 210.47 = 93.49 : x
  2. Step 2: Convert to fraction form
    152.48/210.47 = 93.49/x
  3. Step 3: Cross multiply
    152.48x = 210.47 × 93.49
  4. Step 4: Simplify right side
    152.48x = 19,675.85
  5. Step 5: Solve for x
    x = 19,675.85/152.48
  6. Step 6: Final answer
    x = 129.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.