Home / 388,501.32-582,510.78-163,746.12

Finding the Fourth Proportional to 388,501.32, 582,510.78 and 163,746.12

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Solution

The fourth proportional to 388,501.32, 582,510.78 and 163,746.12 is: 245,517.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,501.32 : 582,510.78 = 163,746.12 : x
  2. Step 2: Convert to fraction form
    388,501.32/582,510.78 = 163,746.12/x
  3. Step 3: Cross multiply
    388,501.32x = 582,510.78 × 163,746.12
  4. Step 4: Simplify right side
    388,501.32x = 95,383,880,083.17
  5. Step 5: Solve for x
    x = 95,383,880,083.17/388,501.32
  6. Step 6: Final answer
    x = 245,517.52

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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.