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Finding the Fourth Proportional to 284,582.28, 426,873.36 and 74,219.64

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Solution

The fourth proportional to 284,582.28, 426,873.36 and 74,219.64 is: 111,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,582.28 : 426,873.36 = 74,219.64 : x
  2. Step 2: Convert to fraction form
    284,582.28/426,873.36 = 74,219.64/x
  3. Step 3: Cross multiply
    284,582.28x = 426,873.36 × 74,219.64
  4. Step 4: Simplify right side
    284,582.28x = 31,682,387,104.79
  5. Step 5: Solve for x
    x = 31,682,387,104.79/284,582.28
  6. Step 6: Final answer
    x = 111,329.44

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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.