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Finding the Fourth Proportional to 445,523.71, 668,130 and 179,215.15

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Solution

The fourth proportional to 445,523.71, 668,130 and 179,215.15 is: 268,760.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,523.71 : 668,130 = 179,215.15 : x
  2. Step 2: Convert to fraction form
    445,523.71/668,130 = 179,215.15/x
  3. Step 3: Cross multiply
    445,523.71x = 668,130 × 179,215.15
  4. Step 4: Simplify right side
    445,523.71x = 119,739,018,169.50
  5. Step 5: Solve for x
    x = 119,739,018,169.50/445,523.71
  6. Step 6: Final answer
    x = 268,760.15

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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.