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Finding the Fourth Proportional to 162,320, 243,480.08 and 51,512

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Solution

The fourth proportional to 162,320, 243,480.08 and 51,512 is: 77,268.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,320 : 243,480.08 = 51,512 : x
  2. Step 2: Convert to fraction form
    162,320/243,480.08 = 51,512/x
  3. Step 3: Cross multiply
    162,320x = 243,480.08 × 51,512
  4. Step 4: Simplify right side
    162,320x = 12,542,145,880.96
  5. Step 5: Solve for x
    x = 12,542,145,880.96/162,320
  6. Step 6: Final answer
    x = 77,268.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.