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Finding the Fourth Proportional to 268.64, 370.74 and 152.24

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Solution

The fourth proportional to 268.64, 370.74 and 152.24 is: 210.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.64 : 370.74 = 152.24 : x
  2. Step 2: Convert to fraction form
    268.64/370.74 = 152.24/x
  3. Step 3: Cross multiply
    268.64x = 370.74 × 152.24
  4. Step 4: Simplify right side
    268.64x = 56,441.46
  5. Step 5: Solve for x
    x = 56,441.46/268.64
  6. Step 6: Final answer
    x = 210.10

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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.