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Finding the Fourth Proportional to 702.19, 969.01 and 383.16

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Solution

The fourth proportional to 702.19, 969.01 and 383.16 is: 528.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    702.19 : 969.01 = 383.16 : x
  2. Step 2: Convert to fraction form
    702.19/969.01 = 383.16/x
  3. Step 3: Cross multiply
    702.19x = 969.01 × 383.16
  4. Step 4: Simplify right side
    702.19x = 371,281.03
  5. Step 5: Solve for x
    x = 371,281.03/702.19
  6. Step 6: Final answer
    x = 528.75

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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.