Home / 205,004.20-307,287.60-78,595.60

Finding the Fourth Proportional to 205,004.20, 307,287.60 and 78,595.60

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Solution

The fourth proportional to 205,004.20, 307,287.60 and 78,595.60 is: 117,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,004.20 : 307,287.60 = 78,595.60 : x
  2. Step 2: Convert to fraction form
    205,004.20/307,287.60 = 78,595.60/x
  3. Step 3: Cross multiply
    205,004.20x = 307,287.60 × 78,595.60
  4. Step 4: Simplify right side
    205,004.20x = 24,151,453,294.56
  5. Step 5: Solve for x
    x = 24,151,453,294.56/205,004.20
  6. Step 6: Final answer
    x = 117,809.55

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1.5x scale

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.