Home / 284,836.78-393,113.91-163,975.42

Finding the Fourth Proportional to 284,836.78, 393,113.91 and 163,975.42

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Solution

The fourth proportional to 284,836.78, 393,113.91 and 163,975.42 is: 226,308.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,836.78 : 393,113.91 = 163,975.42 : x
  2. Step 2: Convert to fraction form
    284,836.78/393,113.91 = 163,975.42/x
  3. Step 3: Cross multiply
    284,836.78x = 393,113.91 × 163,975.42
  4. Step 4: Simplify right side
    284,836.78x = 64,461,018,500.09
  5. Step 5: Solve for x
    x = 64,461,018,500.09/284,836.78
  6. Step 6: Final answer
    x = 226,308.62

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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.