Home / 283,145.85-390,742.56-162,294.20

Finding the Fourth Proportional to 283,145.85, 390,742.56 and 162,294.20

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Solution

The fourth proportional to 283,145.85, 390,742.56 and 162,294.20 is: 223,966.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,145.85 : 390,742.56 = 162,294.20 : x
  2. Step 2: Convert to fraction form
    283,145.85/390,742.56 = 162,294.20/x
  3. Step 3: Cross multiply
    283,145.85x = 390,742.56 × 162,294.20
  4. Step 4: Simplify right side
    283,145.85x = 63,415,251,181.15
  5. Step 5: Solve for x
    x = 63,415,251,181.15/283,145.85
  6. Step 6: Final answer
    x = 223,966.73

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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.