Home / 511,811.43-767,689.44-156,826.50

Finding the Fourth Proportional to 511,811.43, 767,689.44 and 156,826.50

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Solution

The fourth proportional to 511,811.43, 767,689.44 and 156,826.50 is: 235,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,811.43 : 767,689.44 = 156,826.50 : x
  2. Step 2: Convert to fraction form
    511,811.43/767,689.44 = 156,826.50/x
  3. Step 3: Cross multiply
    511,811.43x = 767,689.44 × 156,826.50
  4. Step 4: Simplify right side
    511,811.43x = 120,394,047,962.16
  5. Step 5: Solve for x
    x = 120,394,047,962.16/511,811.43
  6. Step 6: Final answer
    x = 235,231.26

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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.