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Finding the Fourth Proportional to 245,206.60, 367,809.90 and 205,840.60

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Solution

The fourth proportional to 245,206.60, 367,809.90 and 205,840.60 is: 308,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,206.60 : 367,809.90 = 205,840.60 : x
  2. Step 2: Convert to fraction form
    245,206.60/367,809.90 = 205,840.60/x
  3. Step 3: Cross multiply
    245,206.60x = 367,809.90 × 205,840.60
  4. Step 4: Simplify right side
    245,206.60x = 75,710,210,501.94
  5. Step 5: Solve for x
    x = 75,710,210,501.94/245,206.60
  6. Step 6: Final answer
    x = 308,760.90

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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.