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Finding the Fourth Proportional to 388,443.52, 582,898.56 and 163,790.08

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Solution

The fourth proportional to 388,443.52, 582,898.56 and 163,790.08 is: 245,783.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,443.52 : 582,898.56 = 163,790.08 : x
  2. Step 2: Convert to fraction form
    388,443.52/582,898.56 = 163,790.08/x
  3. Step 3: Cross multiply
    388,443.52x = 582,898.56 × 163,790.08
  4. Step 4: Simplify right side
    388,443.52x = 95,473,001,774.28
  5. Step 5: Solve for x
    x = 95,473,001,774.28/388,443.52
  6. Step 6: Final answer
    x = 245,783.48

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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.