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Finding the Fourth Proportional to 270,447.40, 405,671.10 and 73,455.40

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Solution

The fourth proportional to 270,447.40, 405,671.10 and 73,455.40 is: 110,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,447.40 : 405,671.10 = 73,455.40 : x
  2. Step 2: Convert to fraction form
    270,447.40/405,671.10 = 73,455.40/x
  3. Step 3: Cross multiply
    270,447.40x = 405,671.10 × 73,455.40
  4. Step 4: Simplify right side
    270,447.40x = 29,798,732,918.94
  5. Step 5: Solve for x
    x = 29,798,732,918.94/270,447.40
  6. Step 6: Final answer
    x = 110,183.10

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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.