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Finding the Fourth Proportional to 272,843.10, 409,337.55 and 243,464.40

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Solution

The fourth proportional to 272,843.10, 409,337.55 and 243,464.40 is: 365,261.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,843.10 : 409,337.55 = 243,464.40 : x
  2. Step 2: Convert to fraction form
    272,843.10/409,337.55 = 243,464.40/x
  3. Step 3: Cross multiply
    272,843.10x = 409,337.55 × 243,464.40
  4. Step 4: Simplify right side
    272,843.10x = 99,659,121,008.22
  5. Step 5: Solve for x
    x = 99,659,121,008.22/272,843.10
  6. Step 6: Final answer
    x = 365,261.65

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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.