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Finding the Fourth Proportional to 283,351.60, 425,027.40 and 280,727.20

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Solution

The fourth proportional to 283,351.60, 425,027.40 and 280,727.20 is: 421,090.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,351.60 : 425,027.40 = 280,727.20 : x
  2. Step 2: Convert to fraction form
    283,351.60/425,027.40 = 280,727.20/x
  3. Step 3: Cross multiply
    283,351.60x = 425,027.40 × 280,727.20
  4. Step 4: Simplify right side
    283,351.60x = 119,316,751,925.28
  5. Step 5: Solve for x
    x = 119,316,751,925.28/283,351.60
  6. Step 6: Final answer
    x = 421,090.80

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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.