Home / 223,328.13-308,188.96-121,355.20

Finding the Fourth Proportional to 223,328.13, 308,188.96 and 121,355.20

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Solution

The fourth proportional to 223,328.13, 308,188.96 and 121,355.20 is: 167,468.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,328.13 : 308,188.96 = 121,355.20 : x
  2. Step 2: Convert to fraction form
    223,328.13/308,188.96 = 121,355.20/x
  3. Step 3: Cross multiply
    223,328.13x = 308,188.96 × 121,355.20
  4. Step 4: Simplify right side
    223,328.13x = 37,400,332,878.59
  5. Step 5: Solve for x
    x = 37,400,332,878.59/223,328.13
  6. Step 6: Final answer
    x = 167,468.08

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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.