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Finding the Fourth Proportional to 370.64, 510.84 and 272.08

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Solution

The fourth proportional to 370.64, 510.84 and 272.08 is: 375.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.64 : 510.84 = 272.08 : x
  2. Step 2: Convert to fraction form
    370.64/510.84 = 272.08/x
  3. Step 3: Cross multiply
    370.64x = 510.84 × 272.08
  4. Step 4: Simplify right side
    370.64x = 138,989.35
  5. Step 5: Solve for x
    x = 138,989.35/370.64
  6. Step 6: Final answer
    x = 375.00

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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.