Home / 205,048.20-307,900.35-155,184.60

Finding the Fourth Proportional to 205,048.20, 307,900.35 and 155,184.60

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Solution

The fourth proportional to 205,048.20, 307,900.35 and 155,184.60 is: 233,025.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,048.20 : 307,900.35 = 155,184.60 : x
  2. Step 2: Convert to fraction form
    205,048.20/307,900.35 = 155,184.60/x
  3. Step 3: Cross multiply
    205,048.20x = 307,900.35 × 155,184.60
  4. Step 4: Simplify right side
    205,048.20x = 47,781,392,654.61
  5. Step 5: Solve for x
    x = 47,781,392,654.61/205,048.20
  6. Step 6: Final answer
    x = 233,025.17

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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.