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Finding the Fourth Proportional to 445,668.58, 668,170.50 and 268,134.30

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Solution

The fourth proportional to 445,668.58, 668,170.50 and 268,134.30 is: 402,001.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,668.58 : 668,170.50 = 268,134.30 : x
  2. Step 2: Convert to fraction form
    445,668.58/668,170.50 = 268,134.30/x
  3. Step 3: Cross multiply
    445,668.58x = 668,170.50 × 268,134.30
  4. Step 4: Simplify right side
    445,668.58x = 179,159,429,298.15
  5. Step 5: Solve for x
    x = 179,159,429,298.15/445,668.58
  6. Step 6: Final answer
    x = 402,001.48

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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.