Home / 211,779.81-317,669.83-132,949.40

Finding the Fourth Proportional to 211,779.81, 317,669.83 and 132,949.40

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Solution

The fourth proportional to 211,779.81, 317,669.83 and 132,949.40 is: 199,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,779.81 : 317,669.83 = 132,949.40 : x
  2. Step 2: Convert to fraction form
    211,779.81/317,669.83 = 132,949.40/x
  3. Step 3: Cross multiply
    211,779.81x = 317,669.83 × 132,949.40
  4. Step 4: Simplify right side
    211,779.81x = 42,234,011,375.88
  5. Step 5: Solve for x
    x = 42,234,011,375.88/211,779.81
  6. Step 6: Final answer
    x = 199,424.16

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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.