Home / 215,970.04-298,035.75-120,478.33

Finding the Fourth Proportional to 215,970.04, 298,035.75 and 120,478.33

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Solution

The fourth proportional to 215,970.04, 298,035.75 and 120,478.33 is: 166,258.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,970.04 : 298,035.75 = 120,478.33 : x
  2. Step 2: Convert to fraction form
    215,970.04/298,035.75 = 120,478.33/x
  3. Step 3: Cross multiply
    215,970.04x = 298,035.75 × 120,478.33
  4. Step 4: Simplify right side
    215,970.04x = 35,906,849,440.30
  5. Step 5: Solve for x
    x = 35,906,849,440.30/215,970.04
  6. Step 6: Final answer
    x = 166,258.47

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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.