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Finding the Fourth Proportional to 207,139.94, 309,197.71 and 177,746.66

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Solution

The fourth proportional to 207,139.94, 309,197.71 and 177,746.66 is: 265,322.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,139.94 : 309,197.71 = 177,746.66 : x
  2. Step 2: Convert to fraction form
    207,139.94/309,197.71 = 177,746.66/x
  3. Step 3: Cross multiply
    207,139.94x = 309,197.71 × 177,746.66
  4. Step 4: Simplify right side
    207,139.94x = 54,958,860,067.83
  5. Step 5: Solve for x
    x = 54,958,860,067.83/207,139.94
  6. Step 6: Final answer
    x = 265,322.37

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.