Home / 211,683.28-317,528.16-53,914.72

Finding the Fourth Proportional to 211,683.28, 317,528.16 and 53,914.72

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Solution

The fourth proportional to 211,683.28, 317,528.16 and 53,914.72 is: 80,872.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,683.28 : 317,528.16 = 53,914.72 : x
  2. Step 2: Convert to fraction form
    211,683.28/317,528.16 = 53,914.72/x
  3. Step 3: Cross multiply
    211,683.28x = 317,528.16 × 53,914.72
  4. Step 4: Simplify right side
    211,683.28x = 17,119,441,838.52
  5. Step 5: Solve for x
    x = 17,119,441,838.52/211,683.28
  6. Step 6: Final answer
    x = 80,872.91

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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.