Home / 211,322.40-317,275.20-166,999.20

Finding the Fourth Proportional to 211,322.40, 317,275.20 and 166,999.20

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Solution

The fourth proportional to 211,322.40, 317,275.20 and 166,999.20 is: 250,729.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,322.40 : 317,275.20 = 166,999.20 : x
  2. Step 2: Convert to fraction form
    211,322.40/317,275.20 = 166,999.20/x
  3. Step 3: Cross multiply
    211,322.40x = 317,275.20 × 166,999.20
  4. Step 4: Simplify right side
    211,322.40x = 52,984,704,579.84
  5. Step 5: Solve for x
    x = 52,984,704,579.84/211,322.40
  6. Step 6: Final answer
    x = 250,729.24

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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.