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Finding the Fourth Proportional to 253,677.83, 350,071.56 and 138,955.55

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Solution

The fourth proportional to 253,677.83, 350,071.56 and 138,955.55 is: 191,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,677.83 : 350,071.56 = 138,955.55 : x
  2. Step 2: Convert to fraction form
    253,677.83/350,071.56 = 138,955.55/x
  3. Step 3: Cross multiply
    253,677.83x = 350,071.56 × 138,955.55
  4. Step 4: Simplify right side
    253,677.83x = 48,644,384,408.80
  5. Step 5: Solve for x
    x = 48,644,384,408.80/253,677.83
  6. Step 6: Final answer
    x = 191,756.55

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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.