Home / 298,055.04-447,279.52-140,328.60

Finding the Fourth Proportional to 298,055.04, 447,279.52 and 140,328.60

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Solution

The fourth proportional to 298,055.04, 447,279.52 and 140,328.60 is: 210,585.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,055.04 : 447,279.52 = 140,328.60 : x
  2. Step 2: Convert to fraction form
    298,055.04/447,279.52 = 140,328.60/x
  3. Step 3: Cross multiply
    298,055.04x = 447,279.52 × 140,328.60
  4. Step 4: Simplify right side
    298,055.04x = 62,766,108,850.27
  5. Step 5: Solve for x
    x = 62,766,108,850.27/298,055.04
  6. Step 6: Final answer
    x = 210,585.63

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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.