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Finding the Fourth Proportional to 298,415.97, 447,540.57 and 118,420.40

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Solution

The fourth proportional to 298,415.97, 447,540.57 and 118,420.40 is: 177,597.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,415.97 : 447,540.57 = 118,420.40 : x
  2. Step 2: Convert to fraction form
    298,415.97/447,540.57 = 118,420.40/x
  3. Step 3: Cross multiply
    298,415.97x = 447,540.57 × 118,420.40
  4. Step 4: Simplify right side
    298,415.97x = 52,997,934,434.48
  5. Step 5: Solve for x
    x = 52,997,934,434.48/298,415.97
  6. Step 6: Final answer
    x = 177,597.51

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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.