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Finding the Fourth Proportional to 388,951.50, 583,525.80 and 108,468.75

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Solution

The fourth proportional to 388,951.50, 583,525.80 and 108,468.75 is: 162,730.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,951.50 : 583,525.80 = 108,468.75 : x
  2. Step 2: Convert to fraction form
    388,951.50/583,525.80 = 108,468.75/x
  3. Step 3: Cross multiply
    388,951.50x = 583,525.80 × 108,468.75
  4. Step 4: Simplify right side
    388,951.50x = 63,294,314,118.75
  5. Step 5: Solve for x
    x = 63,294,314,118.75/388,951.50
  6. Step 6: Final answer
    x = 162,730.61

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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.