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Finding the Fourth Proportional to 253,647.05, 350,020.46 and 138,926.19

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Solution

The fourth proportional to 253,647.05, 350,020.46 and 138,926.19 is: 191,711.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,647.05 : 350,020.46 = 138,926.19 : x
  2. Step 2: Convert to fraction form
    253,647.05/350,020.46 = 138,926.19/x
  3. Step 3: Cross multiply
    253,647.05x = 350,020.46 × 138,926.19
  4. Step 4: Simplify right side
    253,647.05x = 48,627,009,808.28
  5. Step 5: Solve for x
    x = 48,627,009,808.28/253,647.05
  6. Step 6: Final answer
    x = 191,711.32

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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.