Home / 221,948.25-306,289.67-121,346.25

Finding the Fourth Proportional to 221,948.25, 306,289.67 and 121,346.25

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Solution

The fourth proportional to 221,948.25, 306,289.67 and 121,346.25 is: 167,458.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,948.25 : 306,289.67 = 121,346.25 : x
  2. Step 2: Convert to fraction form
    221,948.25/306,289.67 = 121,346.25/x
  3. Step 3: Cross multiply
    221,948.25x = 306,289.67 × 121,346.25
  4. Step 4: Simplify right side
    221,948.25x = 37,167,102,261.51
  5. Step 5: Solve for x
    x = 37,167,102,261.51/221,948.25
  6. Step 6: Final answer
    x = 167,458.42

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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.