Home / 368,440.11-552,913.83-128,555.37

Finding the Fourth Proportional to 368,440.11, 552,913.83 and 128,555.37

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Solution

The fourth proportional to 368,440.11, 552,913.83 and 128,555.37 is: 192,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,440.11 : 552,913.83 = 128,555.37 : x
  2. Step 2: Convert to fraction form
    368,440.11/552,913.83 = 128,555.37/x
  3. Step 3: Cross multiply
    368,440.11x = 552,913.83 × 128,555.37
  4. Step 4: Simplify right side
    368,440.11x = 71,080,041,993.77
  5. Step 5: Solve for x
    x = 71,080,041,993.77/368,440.11
  6. Step 6: Final answer
    x = 192,921.56

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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.