Home / 205,315.40-307,973.10-148,890.80

Finding the Fourth Proportional to 205,315.40, 307,973.10 and 148,890.80

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Solution

The fourth proportional to 205,315.40, 307,973.10 and 148,890.80 is: 223,336.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,315.40 : 307,973.10 = 148,890.80 : x
  2. Step 2: Convert to fraction form
    205,315.40/307,973.10 = 148,890.80/x
  3. Step 3: Cross multiply
    205,315.40x = 307,973.10 × 148,890.80
  4. Step 4: Simplify right side
    205,315.40x = 45,854,361,237.48
  5. Step 5: Solve for x
    x = 45,854,361,237.48/205,315.40
  6. Step 6: Final answer
    x = 223,336.20

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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.