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Finding the Fourth Proportional to 252,400.81, 379,029.72 and 168,698.85

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Solution

The fourth proportional to 252,400.81, 379,029.72 and 168,698.85 is: 253,334.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,400.81 : 379,029.72 = 168,698.85 : x
  2. Step 2: Convert to fraction form
    252,400.81/379,029.72 = 168,698.85/x
  3. Step 3: Cross multiply
    252,400.81x = 379,029.72 × 168,698.85
  4. Step 4: Simplify right side
    252,400.81x = 63,941,878,512.44
  5. Step 5: Solve for x
    x = 63,941,878,512.44/252,400.81
  6. Step 6: Final answer
    x = 253,334.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.