Home / 330,238.19-455,868.20-222,953.53

Finding the Fourth Proportional to 330,238.19, 455,868.20 and 222,953.53

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Solution

The fourth proportional to 330,238.19, 455,868.20 and 222,953.53 is: 307,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,238.19 : 455,868.20 = 222,953.53 : x
  2. Step 2: Convert to fraction form
    330,238.19/455,868.20 = 222,953.53/x
  3. Step 3: Cross multiply
    330,238.19x = 455,868.20 × 222,953.53
  4. Step 4: Simplify right side
    330,238.19x = 101,637,423,289.98
  5. Step 5: Solve for x
    x = 101,637,423,289.98/330,238.19
  6. Step 6: Final answer
    x = 307,770.05

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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.