Home / 347,790.64-521,760.80-107,899.76

Finding the Fourth Proportional to 347,790.64, 521,760.80 and 107,899.76

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Solution

The fourth proportional to 347,790.64, 521,760.80 and 107,899.76 is: 161,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,790.64 : 521,760.80 = 107,899.76 : x
  2. Step 2: Convert to fraction form
    347,790.64/521,760.80 = 107,899.76/x
  3. Step 3: Cross multiply
    347,790.64x = 521,760.80 × 107,899.76
  4. Step 4: Simplify right side
    347,790.64x = 56,297,865,097.41
  5. Step 5: Solve for x
    x = 56,297,865,097.41/347,790.64
  6. Step 6: Final answer
    x = 161,872.86

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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.