Home / 220,234.80-330,352.20-190,710.30

Finding the Fourth Proportional to 220,234.80, 330,352.20 and 190,710.30

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Solution

The fourth proportional to 220,234.80, 330,352.20 and 190,710.30 is: 286,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,234.80 : 330,352.20 = 190,710.30 : x
  2. Step 2: Convert to fraction form
    220,234.80/330,352.20 = 190,710.30/x
  3. Step 3: Cross multiply
    220,234.80x = 330,352.20 × 190,710.30
  4. Step 4: Simplify right side
    220,234.80x = 63,001,567,167.66
  5. Step 5: Solve for x
    x = 63,001,567,167.66/220,234.80
  6. Step 6: Final answer
    x = 286,065.45

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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.