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Finding the Fourth Proportional to 554.91, 766.07 and 368.84

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Solution

The fourth proportional to 554.91, 766.07 and 368.84 is: 509.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.91 : 766.07 = 368.84 : x
  2. Step 2: Convert to fraction form
    554.91/766.07 = 368.84/x
  3. Step 3: Cross multiply
    554.91x = 766.07 × 368.84
  4. Step 4: Simplify right side
    554.91x = 282,557.26
  5. Step 5: Solve for x
    x = 282,557.26/554.91
  6. Step 6: Final answer
    x = 509.19

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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.