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Finding the Fourth Proportional to 245,130.60, 367,695.90 and 205,764.60

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Solution

The fourth proportional to 245,130.60, 367,695.90 and 205,764.60 is: 308,646.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,130.60 : 367,695.90 = 205,764.60 : x
  2. Step 2: Convert to fraction form
    245,130.60/367,695.90 = 205,764.60/x
  3. Step 3: Cross multiply
    245,130.60x = 367,695.90 × 205,764.60
  4. Step 4: Simplify right side
    245,130.60x = 75,658,799,785.14
  5. Step 5: Solve for x
    x = 75,658,799,785.14/245,130.60
  6. Step 6: Final answer
    x = 308,646.90

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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.