Home / 223,419.10-308,317.75-121,444.55

Finding the Fourth Proportional to 223,419.10, 308,317.75 and 121,444.55

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Solution

The fourth proportional to 223,419.10, 308,317.75 and 121,444.55 is: 167,593.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,419.10 : 308,317.75 = 121,444.55 : x
  2. Step 2: Convert to fraction form
    223,419.10/308,317.75 = 121,444.55/x
  3. Step 3: Cross multiply
    223,419.10x = 308,317.75 × 121,444.55
  4. Step 4: Simplify right side
    223,419.10x = 37,443,510,405.76
  5. Step 5: Solve for x
    x = 37,443,510,405.76/223,419.10
  6. Step 6: Final answer
    x = 167,593.15

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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.