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Finding the Fourth Proportional to 198,491.60, 297,823.80 and 99,995.60

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Solution

The fourth proportional to 198,491.60, 297,823.80 and 99,995.60 is: 150,036.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,491.60 : 297,823.80 = 99,995.60 : x
  2. Step 2: Convert to fraction form
    198,491.60/297,823.80 = 99,995.60/x
  3. Step 3: Cross multiply
    198,491.60x = 297,823.80 × 99,995.60
  4. Step 4: Simplify right side
    198,491.60x = 29,781,069,575.28
  5. Step 5: Solve for x
    x = 29,781,069,575.28/198,491.60
  6. Step 6: Final answer
    x = 150,036.93

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1.5x scale

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.