Home / 236,838.40-355,257.60-205,043.20

Finding the Fourth Proportional to 236,838.40, 355,257.60 and 205,043.20

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Solution

The fourth proportional to 236,838.40, 355,257.60 and 205,043.20 is: 307,564.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,838.40 : 355,257.60 = 205,043.20 : x
  2. Step 2: Convert to fraction form
    236,838.40/355,257.60 = 205,043.20/x
  3. Step 3: Cross multiply
    236,838.40x = 355,257.60 × 205,043.20
  4. Step 4: Simplify right side
    236,838.40x = 72,843,155,128.32
  5. Step 5: Solve for x
    x = 72,843,155,128.32/236,838.40
  6. Step 6: Final answer
    x = 307,564.80

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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.