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Finding the Fourth Proportional to 298,325.73, 447,079.53 and 157,803.69

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Solution

The fourth proportional to 298,325.73, 447,079.53 and 157,803.69 is: 236,489.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,325.73 : 447,079.53 = 157,803.69 : x
  2. Step 2: Convert to fraction form
    298,325.73/447,079.53 = 157,803.69/x
  3. Step 3: Cross multiply
    298,325.73x = 447,079.53 × 157,803.69
  4. Step 4: Simplify right side
    298,325.73x = 70,550,799,557.47
  5. Step 5: Solve for x
    x = 70,550,799,557.47/298,325.73
  6. Step 6: Final answer
    x = 236,489.15

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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.