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Finding the Fourth Proportional to 388,594.65, 582,970.55 and 163,955.64

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Solution

The fourth proportional to 388,594.65, 582,970.55 and 163,955.64 is: 245,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,594.65 : 582,970.55 = 163,955.64 : x
  2. Step 2: Convert to fraction form
    388,594.65/582,970.55 = 163,955.64/x
  3. Step 3: Cross multiply
    388,594.65x = 582,970.55 × 163,955.64
  4. Step 4: Simplify right side
    388,594.65x = 95,581,309,626.40
  5. Step 5: Solve for x
    x = 95,581,309,626.40/388,594.65
  6. Step 6: Final answer
    x = 245,966.61

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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.