Home / 283,212.17-390,829.83-155,885.03

Finding the Fourth Proportional to 283,212.17, 390,829.83 and 155,885.03

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Solution

The fourth proportional to 283,212.17, 390,829.83 and 155,885.03 is: 215,119.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,212.17 : 390,829.83 = 155,885.03 : x
  2. Step 2: Convert to fraction form
    283,212.17/390,829.83 = 155,885.03/x
  3. Step 3: Cross multiply
    283,212.17x = 390,829.83 × 155,885.03
  4. Step 4: Simplify right side
    283,212.17x = 60,924,519,774.44
  5. Step 5: Solve for x
    x = 60,924,519,774.44/283,212.17
  6. Step 6: Final answer
    x = 215,119.71

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1.5x scale

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.