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Finding the Fourth Proportional to 253,317.44, 349,558.80 and 140,137.76

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Solution

The fourth proportional to 253,317.44, 349,558.80 and 140,137.76 is: 193,379.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,317.44 : 349,558.80 = 140,137.76 : x
  2. Step 2: Convert to fraction form
    253,317.44/349,558.80 = 140,137.76/x
  3. Step 3: Cross multiply
    253,317.44x = 349,558.80 × 140,137.76
  4. Step 4: Simplify right side
    253,317.44x = 48,986,387,220.29
  5. Step 5: Solve for x
    x = 48,986,387,220.29/253,317.44
  6. Step 6: Final answer
    x = 193,379.45

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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.