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Finding the Fourth Proportional to 555.60, 767.04 and 369.34

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Solution

The fourth proportional to 555.60, 767.04 and 369.34 is: 509.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.60 : 767.04 = 369.34 : x
  2. Step 2: Convert to fraction form
    555.60/767.04 = 369.34/x
  3. Step 3: Cross multiply
    555.60x = 767.04 × 369.34
  4. Step 4: Simplify right side
    555.60x = 283,298.55
  5. Step 5: Solve for x
    x = 283,298.55/555.60
  6. Step 6: Final answer
    x = 509.90

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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.