Home / 284,107.49-392,076.62-155,054.30

Finding the Fourth Proportional to 284,107.49, 392,076.62 and 155,054.30

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Solution

The fourth proportional to 284,107.49, 392,076.62 and 155,054.30 is: 213,979.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,107.49 : 392,076.62 = 155,054.30 : x
  2. Step 2: Convert to fraction form
    284,107.49/392,076.62 = 155,054.30/x
  3. Step 3: Cross multiply
    284,107.49x = 392,076.62 × 155,054.30
  4. Step 4: Simplify right side
    284,107.49x = 60,793,164,287.72
  5. Step 5: Solve for x
    x = 60,793,164,287.72/284,107.49
  6. Step 6: Final answer
    x = 213,979.45

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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.