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Finding the Fourth Proportional to 198,666.10, 297,999.15 and 48,905.20

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Solution

The fourth proportional to 198,666.10, 297,999.15 and 48,905.20 is: 73,357.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,666.10 : 297,999.15 = 48,905.20 : x
  2. Step 2: Convert to fraction form
    198,666.10/297,999.15 = 48,905.20/x
  3. Step 3: Cross multiply
    198,666.10x = 297,999.15 × 48,905.20
  4. Step 4: Simplify right side
    198,666.10x = 14,573,708,030.58
  5. Step 5: Solve for x
    x = 14,573,708,030.58/198,666.10
  6. Step 6: Final answer
    x = 73,357.80

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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.