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Finding the Fourth Proportional to 207,323.95, 286,195.33 and 139,380.33

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Solution

The fourth proportional to 207,323.95, 286,195.33 and 139,380.33 is: 192,404.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,323.95 : 286,195.33 = 139,380.33 : x
  2. Step 2: Convert to fraction form
    207,323.95/286,195.33 = 139,380.33/x
  3. Step 3: Cross multiply
    207,323.95x = 286,195.33 × 139,380.33
  4. Step 4: Simplify right side
    207,323.95x = 39,889,998,393.45
  5. Step 5: Solve for x
    x = 39,889,998,393.45/207,323.95
  6. Step 6: Final answer
    x = 192,404.20

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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.