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Finding the Fourth Proportional to 253,876.38, 350,347.23 and 139,161.39

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Solution

The fourth proportional to 253,876.38, 350,347.23 and 139,161.39 is: 192,041.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,876.38 : 350,347.23 = 139,161.39 : x
  2. Step 2: Convert to fraction form
    253,876.38/350,347.23 = 139,161.39/x
  3. Step 3: Cross multiply
    253,876.38x = 350,347.23 × 139,161.39
  4. Step 4: Simplify right side
    253,876.38x = 48,754,807,509.45
  5. Step 5: Solve for x
    x = 48,754,807,509.45/253,876.38
  6. Step 6: Final answer
    x = 192,041.53

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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.