Home / 283,241.82-390,882.52-154,188.89

Finding the Fourth Proportional to 283,241.82, 390,882.52 and 154,188.89

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Solution

The fourth proportional to 283,241.82, 390,882.52 and 154,188.89 is: 212,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,241.82 : 390,882.52 = 154,188.89 : x
  2. Step 2: Convert to fraction form
    283,241.82/390,882.52 = 154,188.89/x
  3. Step 3: Cross multiply
    283,241.82x = 390,882.52 × 154,188.89
  4. Step 4: Simplify right side
    283,241.82x = 60,269,740,516.52
  5. Step 5: Solve for x
    x = 60,269,740,516.52/283,241.82
  6. Step 6: Final answer
    x = 212,785.46

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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.