Home / 211,934.34-292,468.53-121,289.88

Finding the Fourth Proportional to 211,934.34, 292,468.53 and 121,289.88

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Solution

The fourth proportional to 211,934.34, 292,468.53 and 121,289.88 is: 167,379.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,934.34 : 292,468.53 = 121,289.88 : x
  2. Step 2: Convert to fraction form
    211,934.34/292,468.53 = 121,289.88/x
  3. Step 3: Cross multiply
    211,934.34x = 292,468.53 × 121,289.88
  4. Step 4: Simplify right side
    211,934.34x = 35,473,472,907.48
  5. Step 5: Solve for x
    x = 35,473,472,907.48/211,934.34
  6. Step 6: Final answer
    x = 167,379.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.