Home / 220,156.80-330,235.20-190,632.30

Finding the Fourth Proportional to 220,156.80, 330,235.20 and 190,632.30

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Solution

The fourth proportional to 220,156.80, 330,235.20 and 190,632.30 is: 285,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,156.80 : 330,235.20 = 190,632.30 : x
  2. Step 2: Convert to fraction form
    220,156.80/330,235.20 = 190,632.30/x
  3. Step 3: Cross multiply
    220,156.80x = 330,235.20 × 190,632.30
  4. Step 4: Simplify right side
    220,156.80x = 62,953,495,716.96
  5. Step 5: Solve for x
    x = 62,953,495,716.96/220,156.80
  6. Step 6: Final answer
    x = 285,948.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.