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Finding the Fourth Proportional to 388,927.26, 583,390.76 and 93,439.26

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Solution

The fourth proportional to 388,927.26, 583,390.76 and 93,439.26 is: 140,158.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,927.26 : 583,390.76 = 93,439.26 : x
  2. Step 2: Convert to fraction form
    388,927.26/583,390.76 = 93,439.26/x
  3. Step 3: Cross multiply
    388,927.26x = 583,390.76 × 93,439.26
  4. Step 4: Simplify right side
    388,927.26x = 54,511,600,438.04
  5. Step 5: Solve for x
    x = 54,511,600,438.04/388,927.26
  6. Step 6: Final answer
    x = 140,158.86

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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.