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Finding the Fourth Proportional to 383,903.80, 575,855.70 and 170,671.30

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Solution

The fourth proportional to 383,903.80, 575,855.70 and 170,671.30 is: 256,006.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,903.80 : 575,855.70 = 170,671.30 : x
  2. Step 2: Convert to fraction form
    383,903.80/575,855.70 = 170,671.30/x
  3. Step 3: Cross multiply
    383,903.80x = 575,855.70 × 170,671.30
  4. Step 4: Simplify right side
    383,903.80x = 98,282,040,931.41
  5. Step 5: Solve for x
    x = 98,282,040,931.41/383,903.80
  6. Step 6: Final answer
    x = 256,006.95

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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.