Home / 219,100.40-328,786.67-140,271.20

Finding the Fourth Proportional to 219,100.40, 328,786.67 and 140,271.20

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Solution

The fourth proportional to 219,100.40, 328,786.67 and 140,271.20 is: 210,493.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,100.40 : 328,786.67 = 140,271.20 : x
  2. Step 2: Convert to fraction form
    219,100.40/328,786.67 = 140,271.20/x
  3. Step 3: Cross multiply
    219,100.40x = 328,786.67 × 140,271.20
  4. Step 4: Simplify right side
    219,100.40x = 46,119,299,451.65
  5. Step 5: Solve for x
    x = 46,119,299,451.65/219,100.40
  6. Step 6: Final answer
    x = 210,493.91

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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.