Home / 211,276.72-316,915.80-53,505.10

Finding the Fourth Proportional to 211,276.72, 316,915.80 and 53,505.10

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Solution

The fourth proportional to 211,276.72, 316,915.80 and 53,505.10 is: 80,257.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,276.72 : 316,915.80 = 53,505.10 : x
  2. Step 2: Convert to fraction form
    211,276.72/316,915.80 = 53,505.10/x
  3. Step 3: Cross multiply
    211,276.72x = 316,915.80 × 53,505.10
  4. Step 4: Simplify right side
    211,276.72x = 16,956,611,570.58
  5. Step 5: Solve for x
    x = 16,956,611,570.58/211,276.72
  6. Step 6: Final answer
    x = 80,257.83

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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.