Home / 257,246.10-386,306.55-190,761.30

Finding the Fourth Proportional to 257,246.10, 386,306.55 and 190,761.30

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Solution

The fourth proportional to 257,246.10, 386,306.55 and 190,761.30 is: 286,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,246.10 : 386,306.55 = 190,761.30 : x
  2. Step 2: Convert to fraction form
    257,246.10/386,306.55 = 190,761.30/x
  3. Step 3: Cross multiply
    257,246.10x = 386,306.55 × 190,761.30
  4. Step 4: Simplify right side
    257,246.10x = 73,692,339,676.52
  5. Step 5: Solve for x
    x = 73,692,339,676.52/257,246.10
  6. Step 6: Final answer
    x = 286,466.30

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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.