Home / 205,141.60-307,712.40-167,816.80

Finding the Fourth Proportional to 205,141.60, 307,712.40 and 167,816.80

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Solution

The fourth proportional to 205,141.60, 307,712.40 and 167,816.80 is: 251,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,141.60 : 307,712.40 = 167,816.80 : x
  2. Step 2: Convert to fraction form
    205,141.60/307,712.40 = 167,816.80/x
  3. Step 3: Cross multiply
    205,141.60x = 307,712.40 × 167,816.80
  4. Step 4: Simplify right side
    205,141.60x = 51,639,310,288.32
  5. Step 5: Solve for x
    x = 51,639,310,288.32/205,141.60
  6. Step 6: Final answer
    x = 251,725.20

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1.5x scale

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.