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Finding the Fourth Proportional to 216,757.62, 299,120.75 and 118,640.40

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Solution

The fourth proportional to 216,757.62, 299,120.75 and 118,640.40 is: 163,721.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,757.62 : 299,120.75 = 118,640.40 : x
  2. Step 2: Convert to fraction form
    216,757.62/299,120.75 = 118,640.40/x
  3. Step 3: Cross multiply
    216,757.62x = 299,120.75 × 118,640.40
  4. Step 4: Simplify right side
    216,757.62x = 35,487,804,158.30
  5. Step 5: Solve for x
    x = 35,487,804,158.30/216,757.62
  6. Step 6: Final answer
    x = 163,721.14

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1.5x scale

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.