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Finding the Fourth Proportional to 253,083.98, 349,257.47 and 138,362.87

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Solution

The fourth proportional to 253,083.98, 349,257.47 and 138,362.87 is: 190,941.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,083.98 : 349,257.47 = 138,362.87 : x
  2. Step 2: Convert to fraction form
    253,083.98/349,257.47 = 138,362.87/x
  3. Step 3: Cross multiply
    253,083.98x = 349,257.47 × 138,362.87
  4. Step 4: Simplify right side
    253,083.98x = 48,324,263,480.04
  5. Step 5: Solve for x
    x = 48,324,263,480.04/253,083.98
  6. Step 6: Final answer
    x = 190,941.62

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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.