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Finding the Fourth Proportional to 152.79, 210.88 and 94.53

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Solution

The fourth proportional to 152.79, 210.88 and 94.53 is: 130.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152.79 : 210.88 = 94.53 : x
  2. Step 2: Convert to fraction form
    152.79/210.88 = 94.53/x
  3. Step 3: Cross multiply
    152.79x = 210.88 × 94.53
  4. Step 4: Simplify right side
    152.79x = 19,935.25
  5. Step 5: Solve for x
    x = 19,935.25/152.79
  6. Step 6: Final answer
    x = 130.48

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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.