Home / 253,609.03-349,991.01-140,431.78

Finding the Fourth Proportional to 253,609.03, 349,991.01 and 140,431.78

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Solution

The fourth proportional to 253,609.03, 349,991.01 and 140,431.78 is: 193,801.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,609.03 : 349,991.01 = 140,431.78 : x
  2. Step 2: Convert to fraction form
    253,609.03/349,991.01 = 140,431.78/x
  3. Step 3: Cross multiply
    253,609.03x = 349,991.01 × 140,431.78
  4. Step 4: Simplify right side
    253,609.03x = 49,149,860,518.30
  5. Step 5: Solve for x
    x = 49,149,860,518.30/253,609.03
  6. Step 6: Final answer
    x = 193,801.70

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1.5x scale

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.