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Finding the Fourth Proportional to 298,099.68, 447,149.04 and 76,483.68

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Solution

The fourth proportional to 298,099.68, 447,149.04 and 76,483.68 is: 114,725.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,099.68 : 447,149.04 = 76,483.68 : x
  2. Step 2: Convert to fraction form
    298,099.68/447,149.04 = 76,483.68/x
  3. Step 3: Cross multiply
    298,099.68x = 447,149.04 × 76,483.68
  4. Step 4: Simplify right side
    298,099.68x = 34,199,604,087.67
  5. Step 5: Solve for x
    x = 34,199,604,087.67/298,099.68
  6. Step 6: Final answer
    x = 114,725.40

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Similar ratio
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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.