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Finding the Fourth Proportional to 343,720.76, 474,118.88 and 203,920.37

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Solution

The fourth proportional to 343,720.76, 474,118.88 and 203,920.37 is: 281,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,720.76 : 474,118.88 = 203,920.37 : x
  2. Step 2: Convert to fraction form
    343,720.76/474,118.88 = 203,920.37/x
  3. Step 3: Cross multiply
    343,720.76x = 474,118.88 × 203,920.37
  4. Step 4: Simplify right side
    343,720.76x = 96,682,499,635.31
  5. Step 5: Solve for x
    x = 96,682,499,635.31/343,720.76
  6. Step 6: Final answer
    x = 281,282.11

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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.