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Finding the Fourth Proportional to 207,664.84, 311,482.66 and 118,639.36

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Solution

The fourth proportional to 207,664.84, 311,482.66 and 118,639.36 is: 177,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,664.84 : 311,482.66 = 118,639.36 : x
  2. Step 2: Convert to fraction form
    207,664.84/311,482.66 = 118,639.36/x
  3. Step 3: Cross multiply
    207,664.84x = 311,482.66 × 118,639.36
  4. Step 4: Simplify right side
    207,664.84x = 36,954,103,433.50
  5. Step 5: Solve for x
    x = 36,954,103,433.50/207,664.84
  6. Step 6: Final answer
    x = 177,950.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.