Home / 211,332.59-316,851.22-78,195.57

Finding the Fourth Proportional to 211,332.59, 316,851.22 and 78,195.57

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Solution

The fourth proportional to 211,332.59, 316,851.22 and 78,195.57 is: 117,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,332.59 : 316,851.22 = 78,195.57 : x
  2. Step 2: Convert to fraction form
    211,332.59/316,851.22 = 78,195.57/x
  3. Step 3: Cross multiply
    211,332.59x = 316,851.22 × 78,195.57
  4. Step 4: Simplify right side
    211,332.59x = 24,776,360,662.65
  5. Step 5: Solve for x
    x = 24,776,360,662.65/211,332.59
  6. Step 6: Final answer
    x = 117,238.71

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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.