Home / 330,108.60-455,776.74-222,828.96

Finding the Fourth Proportional to 330,108.60, 455,776.74 and 222,828.96

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Solution

The fourth proportional to 330,108.60, 455,776.74 and 222,828.96 is: 307,657.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,108.60 : 455,776.74 = 222,828.96 : x
  2. Step 2: Convert to fraction form
    330,108.60/455,776.74 = 222,828.96/x
  3. Step 3: Cross multiply
    330,108.60x = 455,776.74 × 222,828.96
  4. Step 4: Simplify right side
    330,108.60x = 101,560,256,966.39
  5. Step 5: Solve for x
    x = 101,560,256,966.39/330,108.60
  6. Step 6: Final answer
    x = 307,657.11

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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.