Home / 223,185.24-307,999.68-121,210.68

Finding the Fourth Proportional to 223,185.24, 307,999.68 and 121,210.68

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Solution

The fourth proportional to 223,185.24, 307,999.68 and 121,210.68 is: 167,272.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,185.24 : 307,999.68 = 121,210.68 : x
  2. Step 2: Convert to fraction form
    223,185.24/307,999.68 = 121,210.68/x
  3. Step 3: Cross multiply
    223,185.24x = 307,999.68 × 121,210.68
  4. Step 4: Simplify right side
    223,185.24x = 37,332,850,652.58
  5. Step 5: Solve for x
    x = 37,332,850,652.58/223,185.24
  6. Step 6: Final answer
    x = 167,272.94

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1.5x scale

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.