Home / 211,909.96-317,569.38-159,257.80

Finding the Fourth Proportional to 211,909.96, 317,569.38 and 159,257.80

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Solution

The fourth proportional to 211,909.96, 317,569.38 and 159,257.80 is: 238,664.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,909.96 : 317,569.38 = 159,257.80 : x
  2. Step 2: Convert to fraction form
    211,909.96/317,569.38 = 159,257.80/x
  3. Step 3: Cross multiply
    211,909.96x = 317,569.38 × 159,257.80
  4. Step 4: Simplify right side
    211,909.96x = 50,575,400,806.16
  5. Step 5: Solve for x
    x = 50,575,400,806.16/211,909.96
  6. Step 6: Final answer
    x = 238,664.58

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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.