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Finding the Fourth Proportional to 298,003.80, 447,019.70 and 98,341.64

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Solution

The fourth proportional to 298,003.80, 447,019.70 and 98,341.64 is: 147,517.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,003.80 : 447,019.70 = 98,341.64 : x
  2. Step 2: Convert to fraction form
    298,003.80/447,019.70 = 98,341.64/x
  3. Step 3: Cross multiply
    298,003.80x = 447,019.70 × 98,341.64
  4. Step 4: Simplify right side
    298,003.80x = 43,960,650,410.31
  5. Step 5: Solve for x
    x = 43,960,650,410.31/298,003.80
  6. Step 6: Final answer
    x = 147,517.08

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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.