Home / 284,788.40-393,031.79-163,968.80

Finding the Fourth Proportional to 284,788.40, 393,031.79 and 163,968.80

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Solution

The fourth proportional to 284,788.40, 393,031.79 and 163,968.80 is: 226,290.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,788.40 : 393,031.79 = 163,968.80 : x
  2. Step 2: Convert to fraction form
    284,788.40/393,031.79 = 163,968.80/x
  3. Step 3: Cross multiply
    284,788.40x = 393,031.79 × 163,968.80
  4. Step 4: Simplify right side
    284,788.40x = 64,444,948,183.15
  5. Step 5: Solve for x
    x = 64,444,948,183.15/284,788.40
  6. Step 6: Final answer
    x = 226,290.64

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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.