Home / 312,945.38-469,483.41-102,566.78

Finding the Fourth Proportional to 312,945.38, 469,483.41 and 102,566.78

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Solution

The fourth proportional to 312,945.38, 469,483.41 and 102,566.78 is: 153,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,945.38 : 469,483.41 = 102,566.78 : x
  2. Step 2: Convert to fraction form
    312,945.38/469,483.41 = 102,566.78/x
  3. Step 3: Cross multiply
    312,945.38x = 469,483.41 × 102,566.78
  4. Step 4: Simplify right side
    312,945.38x = 48,153,401,627.12
  5. Step 5: Solve for x
    x = 48,153,401,627.12/312,945.38
  6. Step 6: Final answer
    x = 153,871.58

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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.