Home / 257,004.57-385,460.41-69,972.33

Finding the Fourth Proportional to 257,004.57, 385,460.41 and 69,972.33

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Solution

The fourth proportional to 257,004.57, 385,460.41 and 69,972.33 is: 104,945.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,004.57 : 385,460.41 = 69,972.33 : x
  2. Step 2: Convert to fraction form
    257,004.57/385,460.41 = 69,972.33/x
  3. Step 3: Cross multiply
    257,004.57x = 385,460.41 × 69,972.33
  4. Step 4: Simplify right side
    257,004.57x = 26,971,563,010.46
  5. Step 5: Solve for x
    x = 26,971,563,010.46/257,004.57
  6. Step 6: Final answer
    x = 104,945.85

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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.