Home / 220,811.60-304,721.16-120,210.32

Finding the Fourth Proportional to 220,811.60, 304,721.16 and 120,210.32

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Solution

The fourth proportional to 220,811.60, 304,721.16 and 120,210.32 is: 165,890.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,811.60 : 304,721.16 = 120,210.32 : x
  2. Step 2: Convert to fraction form
    220,811.60/304,721.16 = 120,210.32/x
  3. Step 3: Cross multiply
    220,811.60x = 304,721.16 × 120,210.32
  4. Step 4: Simplify right side
    220,811.60x = 36,630,628,154.37
  5. Step 5: Solve for x
    x = 36,630,628,154.37/220,811.60
  6. Step 6: Final answer
    x = 165,890.87

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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.