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Finding the Fourth Proportional to 253,566, 349,919.76 and 138,842.56

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Solution

The fourth proportional to 253,566, 349,919.76 and 138,842.56 is: 191,602.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,566 : 349,919.76 = 138,842.56 : x
  2. Step 2: Convert to fraction form
    253,566/349,919.76 = 138,842.56/x
  3. Step 3: Cross multiply
    253,566x = 349,919.76 × 138,842.56
  4. Step 4: Simplify right side
    253,566x = 48,583,755,272.99
  5. Step 5: Solve for x
    x = 48,583,755,272.99/253,566
  6. Step 6: Final answer
    x = 191,602.01

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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.