Home / 260,048.20-390,072.30-185,009.80

Finding the Fourth Proportional to 260,048.20, 390,072.30 and 185,009.80

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Solution

The fourth proportional to 260,048.20, 390,072.30 and 185,009.80 is: 277,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,048.20 : 390,072.30 = 185,009.80 : x
  2. Step 2: Convert to fraction form
    260,048.20/390,072.30 = 185,009.80/x
  3. Step 3: Cross multiply
    260,048.20x = 390,072.30 × 185,009.80
  4. Step 4: Simplify right side
    260,048.20x = 72,167,198,208.54
  5. Step 5: Solve for x
    x = 72,167,198,208.54/260,048.20
  6. Step 6: Final answer
    x = 277,514.70

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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.