Home / 223,284.17-308,135.66-121,311.65

Finding the Fourth Proportional to 223,284.17, 308,135.66 and 121,311.65

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Solution

The fourth proportional to 223,284.17, 308,135.66 and 121,311.65 is: 167,411.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,284.17 : 308,135.66 = 121,311.65 : x
  2. Step 2: Convert to fraction form
    223,284.17/308,135.66 = 121,311.65/x
  3. Step 3: Cross multiply
    223,284.17x = 308,135.66 × 121,311.65
  4. Step 4: Simplify right side
    223,284.17x = 37,380,445,502.22
  5. Step 5: Solve for x
    x = 37,380,445,502.22/223,284.17
  6. Step 6: Final answer
    x = 167,411.98

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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.