Home / 283,074.70-390,439.02-162,171.94

Finding the Fourth Proportional to 283,074.70, 390,439.02 and 162,171.94

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Solution

The fourth proportional to 283,074.70, 390,439.02 and 162,171.94 is: 223,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,074.70 : 390,439.02 = 162,171.94 : x
  2. Step 2: Convert to fraction form
    283,074.70/390,439.02 = 162,171.94/x
  3. Step 3: Cross multiply
    283,074.70x = 390,439.02 × 162,171.94
  4. Step 4: Simplify right side
    283,074.70x = 63,318,253,325.10
  5. Step 5: Solve for x
    x = 63,318,253,325.10/283,074.70
  6. Step 6: Final answer
    x = 223,680.37

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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.