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Finding the Fourth Proportional to 259,588.80, 388,768.80 and 176,030.40

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Solution

The fourth proportional to 259,588.80, 388,768.80 and 176,030.40 is: 263,628.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,588.80 : 388,768.80 = 176,030.40 : x
  2. Step 2: Convert to fraction form
    259,588.80/388,768.80 = 176,030.40/x
  3. Step 3: Cross multiply
    259,588.80x = 388,768.80 × 176,030.40
  4. Step 4: Simplify right side
    259,588.80x = 68,435,127,371.52
  5. Step 5: Solve for x
    x = 68,435,127,371.52/259,588.80
  6. Step 6: Final answer
    x = 263,628.97

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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.