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Finding the Fourth Proportional to 300,060.90, 414,123.21 and 172,741.86

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Solution

The fourth proportional to 300,060.90, 414,123.21 and 172,741.86 is: 238,406.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,060.90 : 414,123.21 = 172,741.86 : x
  2. Step 2: Convert to fraction form
    300,060.90/414,123.21 = 172,741.86/x
  3. Step 3: Cross multiply
    300,060.90x = 414,123.21 × 172,741.86
  4. Step 4: Simplify right side
    300,060.90x = 71,536,413,564.57
  5. Step 5: Solve for x
    x = 71,536,413,564.57/300,060.90
  6. Step 6: Final answer
    x = 238,406.32

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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.