Home / 367,620.20-551,430.30-307,485.80

Finding the Fourth Proportional to 367,620.20, 551,430.30 and 307,485.80

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Solution

The fourth proportional to 367,620.20, 551,430.30 and 307,485.80 is: 461,228.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,620.20 : 551,430.30 = 307,485.80 : x
  2. Step 2: Convert to fraction form
    367,620.20/551,430.30 = 307,485.80/x
  3. Step 3: Cross multiply
    367,620.20x = 551,430.30 × 307,485.80
  4. Step 4: Simplify right side
    367,620.20x = 169,556,986,939.74
  5. Step 5: Solve for x
    x = 169,556,986,939.74/367,620.20
  6. Step 6: Final answer
    x = 461,228.70

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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.