Home / 285,086.20-393,392.24-170,342

Finding the Fourth Proportional to 285,086.20, 393,392.24 and 170,342

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Solution

The fourth proportional to 285,086.20, 393,392.24 and 170,342 is: 235,056.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,086.20 : 393,392.24 = 170,342 : x
  2. Step 2: Convert to fraction form
    285,086.20/393,392.24 = 170,342/x
  3. Step 3: Cross multiply
    285,086.20x = 393,392.24 × 170,342
  4. Step 4: Simplify right side
    285,086.20x = 67,011,220,946.08
  5. Step 5: Solve for x
    x = 67,011,220,946.08/285,086.20
  6. Step 6: Final answer
    x = 235,056.00

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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.