Home / 340,945.18-511,335.62-104,289.90

Finding the Fourth Proportional to 340,945.18, 511,335.62 and 104,289.90

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Solution

The fourth proportional to 340,945.18, 511,335.62 and 104,289.90 is: 156,409.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,945.18 : 511,335.62 = 104,289.90 : x
  2. Step 2: Convert to fraction form
    340,945.18/511,335.62 = 104,289.90/x
  3. Step 3: Cross multiply
    340,945.18x = 511,335.62 × 104,289.90
  4. Step 4: Simplify right side
    340,945.18x = 53,327,140,676.24
  5. Step 5: Solve for x
    x = 53,327,140,676.24/340,945.18
  6. Step 6: Final answer
    x = 156,409.72

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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.