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Finding the Fourth Proportional to 356,706.90, 492,236.76 and 203,714.88

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Solution

The fourth proportional to 356,706.90, 492,236.76 and 203,714.88 is: 281,115.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,706.90 : 492,236.76 = 203,714.88 : x
  2. Step 2: Convert to fraction form
    356,706.90/492,236.76 = 203,714.88/x
  3. Step 3: Cross multiply
    356,706.90x = 492,236.76 × 203,714.88
  4. Step 4: Simplify right side
    356,706.90x = 100,275,952,494.99
  5. Step 5: Solve for x
    x = 100,275,952,494.99/356,706.90
  6. Step 6: Final answer
    x = 281,115.82

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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.