Home / 283,115.25-390,701.78-155,793.58

Finding the Fourth Proportional to 283,115.25, 390,701.78 and 155,793.58

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Solution

The fourth proportional to 283,115.25, 390,701.78 and 155,793.58 is: 214,996.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,115.25 : 390,701.78 = 155,793.58 : x
  2. Step 2: Convert to fraction form
    283,115.25/390,701.78 = 155,793.58/x
  3. Step 3: Cross multiply
    283,115.25x = 390,701.78 × 155,793.58
  4. Step 4: Simplify right side
    283,115.25x = 60,868,827,847.08
  5. Step 5: Solve for x
    x = 60,868,827,847.08/283,115.25
  6. Step 6: Final answer
    x = 214,996.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.