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Finding the Fourth Proportional to 278,040.68, 383,696.64 and 150,716.58

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Solution

The fourth proportional to 278,040.68, 383,696.64 and 150,716.58 is: 207,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,040.68 : 383,696.64 = 150,716.58 : x
  2. Step 2: Convert to fraction form
    278,040.68/383,696.64 = 150,716.58/x
  3. Step 3: Cross multiply
    278,040.68x = 383,696.64 × 150,716.58
  4. Step 4: Simplify right side
    278,040.68x = 57,829,445,338.29
  5. Step 5: Solve for x
    x = 57,829,445,338.29/278,040.68
  6. Step 6: Final answer
    x = 207,989.15

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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.