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Finding the Fourth Proportional to 370.39, 510.65 and 265.63

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Solution

The fourth proportional to 370.39, 510.65 and 265.63 is: 366.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    370.39 : 510.65 = 265.63 : x
  2. Step 2: Convert to fraction form
    370.39/510.65 = 265.63/x
  3. Step 3: Cross multiply
    370.39x = 510.65 × 265.63
  4. Step 4: Simplify right side
    370.39x = 135,642.63
  5. Step 5: Solve for x
    x = 135,642.63/370.39
  6. Step 6: Final answer
    x = 366.22

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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.