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Finding the Fourth Proportional to 648.60, 895.02 and 368.84

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Solution

The fourth proportional to 648.60, 895.02 and 368.84 is: 508.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.60 : 895.02 = 368.84 : x
  2. Step 2: Convert to fraction form
    648.60/895.02 = 368.84/x
  3. Step 3: Cross multiply
    648.60x = 895.02 × 368.84
  4. Step 4: Simplify right side
    648.60x = 330,114.70
  5. Step 5: Solve for x
    x = 330,114.70/648.60
  6. Step 6: Final answer
    x = 508.97

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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.