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Finding the Fourth Proportional to 344,900.20, 517,940.70 and 187,436.20

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Solution

The fourth proportional to 344,900.20, 517,940.70 and 187,436.20 is: 281,475.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,900.20 : 517,940.70 = 187,436.20 : x
  2. Step 2: Convert to fraction form
    344,900.20/517,940.70 = 187,436.20/x
  3. Step 3: Cross multiply
    344,900.20x = 517,940.70 × 187,436.20
  4. Step 4: Simplify right side
    344,900.20x = 97,080,836,633.34
  5. Step 5: Solve for x
    x = 97,080,836,633.34/344,900.20
  6. Step 6: Final answer
    x = 281,475.15

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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.