Home / 211,834.51-317,654.73-126,484.13

Finding the Fourth Proportional to 211,834.51, 317,654.73 and 126,484.13

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Solution

The fourth proportional to 211,834.51, 317,654.73 and 126,484.13 is: 189,668.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,834.51 : 317,654.73 = 126,484.13 : x
  2. Step 2: Convert to fraction form
    211,834.51/317,654.73 = 126,484.13/x
  3. Step 3: Cross multiply
    211,834.51x = 317,654.73 × 126,484.13
  4. Step 4: Simplify right side
    211,834.51x = 40,178,282,958.57
  5. Step 5: Solve for x
    x = 40,178,282,958.57/211,834.51
  6. Step 6: Final answer
    x = 189,668.26

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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.