Home / 283,143.22-390,753.71-162,304.59

Finding the Fourth Proportional to 283,143.22, 390,753.71 and 162,304.59

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Solution

The fourth proportional to 283,143.22, 390,753.71 and 162,304.59 is: 223,989.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,143.22 : 390,753.71 = 162,304.59 : x
  2. Step 2: Convert to fraction form
    283,143.22/390,753.71 = 162,304.59/x
  3. Step 3: Cross multiply
    283,143.22x = 390,753.71 × 162,304.59
  4. Step 4: Simplify right side
    283,143.22x = 63,421,120,692.53
  5. Step 5: Solve for x
    x = 63,421,120,692.53/283,143.22
  6. Step 6: Final answer
    x = 223,989.54

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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.