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Finding the Fourth Proportional to 559,053.20, 838,579.80 and 204,078.80

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Solution

The fourth proportional to 559,053.20, 838,579.80 and 204,078.80 is: 306,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,053.20 : 838,579.80 = 204,078.80 : x
  2. Step 2: Convert to fraction form
    559,053.20/838,579.80 = 204,078.80/x
  3. Step 3: Cross multiply
    559,053.20x = 838,579.80 × 204,078.80
  4. Step 4: Simplify right side
    559,053.20x = 171,136,359,288.24
  5. Step 5: Solve for x
    x = 171,136,359,288.24/559,053.20
  6. Step 6: Final answer
    x = 306,118.20

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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.