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Finding the Fourth Proportional to 340,079.85, 469,314.15 and 194,882.76

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Solution

The fourth proportional to 340,079.85, 469,314.15 and 194,882.76 is: 268,940.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,079.85 : 469,314.15 = 194,882.76 : x
  2. Step 2: Convert to fraction form
    340,079.85/469,314.15 = 194,882.76/x
  3. Step 3: Cross multiply
    340,079.85x = 469,314.15 × 194,882.76
  4. Step 4: Simplify right side
    340,079.85x = 91,461,236,128.24
  5. Step 5: Solve for x
    x = 91,461,236,128.24/340,079.85
  6. Step 6: Final answer
    x = 268,940.47

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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.