Home / 223,281.67-308,132.19-121,309.15

Finding the Fourth Proportional to 223,281.67, 308,132.19 and 121,309.15

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Solution

The fourth proportional to 223,281.67, 308,132.19 and 121,309.15 is: 167,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,281.67 : 308,132.19 = 121,309.15 : x
  2. Step 2: Convert to fraction form
    223,281.67/308,132.19 = 121,309.15/x
  3. Step 3: Cross multiply
    223,281.67x = 308,132.19 × 121,309.15
  4. Step 4: Simplify right side
    223,281.67x = 37,379,254,056.54
  5. Step 5: Solve for x
    x = 37,379,254,056.54/223,281.67
  6. Step 6: Final answer
    x = 167,408.52

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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.