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Finding the Fourth Proportional to 388,886.07, 583,414.74 and 119,016.29

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Solution

The fourth proportional to 388,886.07, 583,414.74 and 119,016.29 is: 178,550.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,886.07 : 583,414.74 = 119,016.29 : x
  2. Step 2: Convert to fraction form
    388,886.07/583,414.74 = 119,016.29/x
  3. Step 3: Cross multiply
    388,886.07x = 583,414.74 × 119,016.29
  4. Step 4: Simplify right side
    388,886.07x = 69,435,855,415.35
  5. Step 5: Solve for x
    x = 69,435,855,415.35/388,886.07
  6. Step 6: Final answer
    x = 178,550.64

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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.