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Finding the Fourth Proportional to 355,479.93, 532,866.74 and 145,268.73

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Solution

The fourth proportional to 355,479.93, 532,866.74 and 145,268.73 is: 217,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,479.93 : 532,866.74 = 145,268.73 : x
  2. Step 2: Convert to fraction form
    355,479.93/532,866.74 = 145,268.73/x
  3. Step 3: Cross multiply
    355,479.93x = 532,866.74 × 145,268.73
  4. Step 4: Simplify right side
    355,479.93x = 77,408,873,852.70
  5. Step 5: Solve for x
    x = 77,408,873,852.70/355,479.93
  6. Step 6: Final answer
    x = 217,758.77

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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.