Home / 331,764.72-457,690.80-210,841.20

Finding the Fourth Proportional to 331,764.72, 457,690.80 and 210,841.20

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Solution

The fourth proportional to 331,764.72, 457,690.80 and 210,841.20 is: 290,869.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,764.72 : 457,690.80 = 210,841.20 : x
  2. Step 2: Convert to fraction form
    331,764.72/457,690.80 = 210,841.20/x
  3. Step 3: Cross multiply
    331,764.72x = 457,690.80 × 210,841.20
  4. Step 4: Simplify right side
    331,764.72x = 96,500,077,500.96
  5. Step 5: Solve for x
    x = 96,500,077,500.96/331,764.72
  6. Step 6: Final answer
    x = 290,869.02

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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.