Home / 205,047.20-306,879.60-188,458.40

Finding the Fourth Proportional to 205,047.20, 306,879.60 and 188,458.40

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Solution

The fourth proportional to 205,047.20, 306,879.60 and 188,458.40 is: 282,052.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,047.20 : 306,879.60 = 188,458.40 : x
  2. Step 2: Convert to fraction form
    205,047.20/306,879.60 = 188,458.40/x
  3. Step 3: Cross multiply
    205,047.20x = 306,879.60 × 188,458.40
  4. Step 4: Simplify right side
    205,047.20x = 57,834,038,408.64
  5. Step 5: Solve for x
    x = 57,834,038,408.64/205,047.20
  6. Step 6: Final answer
    x = 282,052.32

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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.