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Finding the Fourth Proportional to 554.94, 765.56 and 368.16

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Solution

The fourth proportional to 554.94, 765.56 and 368.16 is: 507.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.94 : 765.56 = 368.16 : x
  2. Step 2: Convert to fraction form
    554.94/765.56 = 368.16/x
  3. Step 3: Cross multiply
    554.94x = 765.56 × 368.16
  4. Step 4: Simplify right side
    554.94x = 281,848.57
  5. Step 5: Solve for x
    x = 281,848.57/554.94
  6. Step 6: Final answer
    x = 507.89

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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.