Home / 223,375.18-308,260.13-121,400.64

Finding the Fourth Proportional to 223,375.18, 308,260.13 and 121,400.64

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Solution

The fourth proportional to 223,375.18, 308,260.13 and 121,400.64 is: 167,534.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,375.18 : 308,260.13 = 121,400.64 : x
  2. Step 2: Convert to fraction form
    223,375.18/308,260.13 = 121,400.64/x
  3. Step 3: Cross multiply
    223,375.18x = 308,260.13 × 121,400.64
  4. Step 4: Simplify right side
    223,375.18x = 37,422,977,068.48
  5. Step 5: Solve for x
    x = 37,422,977,068.48/223,375.18
  6. Step 6: Final answer
    x = 167,534.18

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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.