Home / 211,528.65-317,389.83-91,622.28

Finding the Fourth Proportional to 211,528.65, 317,389.83 and 91,622.28

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Solution

The fourth proportional to 211,528.65, 317,389.83 and 91,622.28 is: 137,475.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,528.65 : 317,389.83 = 91,622.28 : x
  2. Step 2: Convert to fraction form
    211,528.65/317,389.83 = 91,622.28/x
  3. Step 3: Cross multiply
    211,528.65x = 317,389.83 × 91,622.28
  4. Step 4: Simplify right side
    211,528.65x = 29,079,979,873.41
  5. Step 5: Solve for x
    x = 29,079,979,873.41/211,528.65
  6. Step 6: Final answer
    x = 137,475.37

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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.