Home / 245,649.10-339,002.38-138,222.94

Finding the Fourth Proportional to 245,649.10, 339,002.38 and 138,222.94

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Solution

The fourth proportional to 245,649.10, 339,002.38 and 138,222.94 is: 190,751.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,649.10 : 339,002.38 = 138,222.94 : x
  2. Step 2: Convert to fraction form
    245,649.10/339,002.38 = 138,222.94/x
  3. Step 3: Cross multiply
    245,649.10x = 339,002.38 × 138,222.94
  4. Step 4: Simplify right side
    245,649.10x = 46,857,905,630.60
  5. Step 5: Solve for x
    x = 46,857,905,630.60/245,649.10
  6. Step 6: Final answer
    x = 190,751.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.