Home / 284,273.84-392,438.04-222,911.84

Finding the Fourth Proportional to 284,273.84, 392,438.04 and 222,911.84

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Solution

The fourth proportional to 284,273.84, 392,438.04 and 222,911.84 is: 307,728.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,273.84 : 392,438.04 = 222,911.84 : x
  2. Step 2: Convert to fraction form
    284,273.84/392,438.04 = 222,911.84/x
  3. Step 3: Cross multiply
    284,273.84x = 392,438.04 × 222,911.84
  4. Step 4: Simplify right side
    284,273.84x = 87,479,085,582.39
  5. Step 5: Solve for x
    x = 87,479,085,582.39/284,273.84
  6. Step 6: Final answer
    x = 307,728.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.