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Finding the Fourth Proportional to 555.93, 767.45 and 369.73

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Solution

The fourth proportional to 555.93, 767.45 and 369.73 is: 510.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.93 : 767.45 = 369.73 : x
  2. Step 2: Convert to fraction form
    555.93/767.45 = 369.73/x
  3. Step 3: Cross multiply
    555.93x = 767.45 × 369.73
  4. Step 4: Simplify right side
    555.93x = 283,743.60
  5. Step 5: Solve for x
    x = 283,743.60/555.93
  6. Step 6: Final answer
    x = 510.40

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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.