Home / 218,421.26-301,431.04-122,934.14

Finding the Fourth Proportional to 218,421.26, 301,431.04 and 122,934.14

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Solution

The fourth proportional to 218,421.26, 301,431.04 and 122,934.14 is: 169,654.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,421.26 : 301,431.04 = 122,934.14 : x
  2. Step 2: Convert to fraction form
    218,421.26/301,431.04 = 122,934.14/x
  3. Step 3: Cross multiply
    218,421.26x = 301,431.04 × 122,934.14
  4. Step 4: Simplify right side
    218,421.26x = 37,056,165,671.71
  5. Step 5: Solve for x
    x = 37,056,165,671.71/218,421.26
  6. Step 6: Final answer
    x = 169,654.57

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1.5x scale

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.