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Finding the Fourth Proportional to 161,911.36, 242,880 and 49,600.48

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Solution

The fourth proportional to 161,911.36, 242,880 and 49,600.48 is: 74,404.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,911.36 : 242,880 = 49,600.48 : x
  2. Step 2: Convert to fraction form
    161,911.36/242,880 = 49,600.48/x
  3. Step 3: Cross multiply
    161,911.36x = 242,880 × 49,600.48
  4. Step 4: Simplify right side
    161,911.36x = 12,046,964,582.40
  5. Step 5: Solve for x
    x = 12,046,964,582.40/161,911.36
  6. Step 6: Final answer
    x = 74,404.69

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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.