Home / 257,204.14-386,045.58-130,938.90

Finding the Fourth Proportional to 257,204.14, 386,045.58 and 130,938.90

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Solution

The fourth proportional to 257,204.14, 386,045.58 and 130,938.90 is: 196,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,204.14 : 386,045.58 = 130,938.90 : x
  2. Step 2: Convert to fraction form
    257,204.14/386,045.58 = 130,938.90/x
  3. Step 3: Cross multiply
    257,204.14x = 386,045.58 × 130,938.90
  4. Step 4: Simplify right side
    257,204.14x = 50,548,383,595.06
  5. Step 5: Solve for x
    x = 50,548,383,595.06/257,204.14
  6. Step 6: Final answer
    x = 196,530.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.