Home / 278,639.84-384,584.16-183,155.36

Finding the Fourth Proportional to 278,639.84, 384,584.16 and 183,155.36

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Solution

The fourth proportional to 278,639.84, 384,584.16 and 183,155.36 is: 252,794.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,639.84 : 384,584.16 = 183,155.36 : x
  2. Step 2: Convert to fraction form
    278,639.84/384,584.16 = 183,155.36/x
  3. Step 3: Cross multiply
    278,639.84x = 384,584.16 × 183,155.36
  4. Step 4: Simplify right side
    278,639.84x = 70,438,650,275.10
  5. Step 5: Solve for x
    x = 70,438,650,275.10/278,639.84
  6. Step 6: Final answer
    x = 252,794.61

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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.