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Finding the Fourth Proportional to 172,359.60, 258,733.80 and 133,090.80

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Solution

The fourth proportional to 172,359.60, 258,733.80 and 133,090.80 is: 199,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,359.60 : 258,733.80 = 133,090.80 : x
  2. Step 2: Convert to fraction form
    172,359.60/258,733.80 = 133,090.80/x
  3. Step 3: Cross multiply
    172,359.60x = 258,733.80 × 133,090.80
  4. Step 4: Simplify right side
    172,359.60x = 34,435,088,429.04
  5. Step 5: Solve for x
    x = 34,435,088,429.04/172,359.60
  6. Step 6: Final answer
    x = 199,786.31

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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.