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Finding the Fourth Proportional to 370.29, 510.93 and 272.28

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Solution

The fourth proportional to 370.29, 510.93 and 272.28 is: 375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.29 : 510.93 = 272.28 : x
  2. Step 2: Convert to fraction form
    370.29/510.93 = 272.28/x
  3. Step 3: Cross multiply
    370.29x = 510.93 × 272.28
  4. Step 4: Simplify right side
    370.29x = 139,115.83
  5. Step 5: Solve for x
    x = 139,115.83/370.29
  6. Step 6: Final answer
    x = 375.70

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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.