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Finding the Fourth Proportional to 367,776.40, 551,664.60 and 131,126.80

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Solution

The fourth proportional to 367,776.40, 551,664.60 and 131,126.80 is: 196,690.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,776.40 : 551,664.60 = 131,126.80 : x
  2. Step 2: Convert to fraction form
    367,776.40/551,664.60 = 131,126.80/x
  3. Step 3: Cross multiply
    367,776.40x = 551,664.60 × 131,126.80
  4. Step 4: Simplify right side
    367,776.40x = 72,338,013,671.28
  5. Step 5: Solve for x
    x = 72,338,013,671.28/367,776.40
  6. Step 6: Final answer
    x = 196,690.20

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1.5x scale

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.