Home / 205,125.20-307,687.80-173,632.40

Finding the Fourth Proportional to 205,125.20, 307,687.80 and 173,632.40

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Solution

The fourth proportional to 205,125.20, 307,687.80 and 173,632.40 is: 260,448.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,125.20 : 307,687.80 = 173,632.40 : x
  2. Step 2: Convert to fraction form
    205,125.20/307,687.80 = 173,632.40/x
  3. Step 3: Cross multiply
    205,125.20x = 307,687.80 × 173,632.40
  4. Step 4: Simplify right side
    205,125.20x = 53,424,571,164.72
  5. Step 5: Solve for x
    x = 53,424,571,164.72/205,125.20
  6. Step 6: Final answer
    x = 260,448.60

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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.