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Finding the Fourth Proportional to 300,063.90, 414,127.35 and 172,744.86

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Solution

The fourth proportional to 300,063.90, 414,127.35 and 172,744.86 is: 238,410.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,063.90 : 414,127.35 = 172,744.86 : x
  2. Step 2: Convert to fraction form
    300,063.90/414,127.35 = 172,744.86/x
  3. Step 3: Cross multiply
    300,063.90x = 414,127.35 × 172,744.86
  4. Step 4: Simplify right side
    300,063.90x = 71,538,371,097.92
  5. Step 5: Solve for x
    x = 71,538,371,097.92/300,063.90
  6. Step 6: Final answer
    x = 238,410.46

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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.