Home / 283,138.42-390,719.46-162,195.52

Finding the Fourth Proportional to 283,138.42, 390,719.46 and 162,195.52

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Solution

The fourth proportional to 283,138.42, 390,719.46 and 162,195.52 is: 223,823.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,138.42 : 390,719.46 = 162,195.52 : x
  2. Step 2: Convert to fraction form
    283,138.42/390,719.46 = 162,195.52/x
  3. Step 3: Cross multiply
    283,138.42x = 390,719.46 × 162,195.52
  4. Step 4: Simplify right side
    283,138.42x = 63,372,945,988.82
  5. Step 5: Solve for x
    x = 63,372,945,988.82/283,138.42
  6. Step 6: Final answer
    x = 223,823.20

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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.