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Finding the Fourth Proportional to 398,710.84, 598,315.26 and 162,053.44

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Solution

The fourth proportional to 398,710.84, 598,315.26 and 162,053.44 is: 243,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,710.84 : 598,315.26 = 162,053.44 : x
  2. Step 2: Convert to fraction form
    398,710.84/598,315.26 = 162,053.44/x
  3. Step 3: Cross multiply
    398,710.84x = 598,315.26 × 162,053.44
  4. Step 4: Simplify right side
    398,710.84x = 96,959,046,087.49
  5. Step 5: Solve for x
    x = 96,959,046,087.49/398,710.84
  6. Step 6: Final answer
    x = 243,181.36

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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.