Home / 388,601.87-582,981.39-163,962.78

Finding the Fourth Proportional to 388,601.87, 582,981.39 and 163,962.78

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Solution

The fourth proportional to 388,601.87, 582,981.39 and 163,962.78 is: 245,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,601.87 : 582,981.39 = 163,962.78 : x
  2. Step 2: Convert to fraction form
    388,601.87/582,981.39 = 163,962.78/x
  3. Step 3: Cross multiply
    388,601.87x = 582,981.39 × 163,962.78
  4. Step 4: Simplify right side
    388,601.87x = 95,587,249,392.66
  5. Step 5: Solve for x
    x = 95,587,249,392.66/388,601.87
  6. Step 6: Final answer
    x = 245,977.33

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1.5x scale

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.