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Finding the Fourth Proportional to 277,331.60, 415,997.40 and 266,445.20

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Solution

The fourth proportional to 277,331.60, 415,997.40 and 266,445.20 is: 399,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,331.60 : 415,997.40 = 266,445.20 : x
  2. Step 2: Convert to fraction form
    277,331.60/415,997.40 = 266,445.20/x
  3. Step 3: Cross multiply
    277,331.60x = 415,997.40 × 266,445.20
  4. Step 4: Simplify right side
    277,331.60x = 110,840,510,442.48
  5. Step 5: Solve for x
    x = 110,840,510,442.48/277,331.60
  6. Step 6: Final answer
    x = 399,667.80

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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.