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Finding the Fourth Proportional to 383,730.60, 575,267.67 and 147,243

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Solution

The fourth proportional to 383,730.60, 575,267.67 and 147,243 is: 220,738.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,730.60 : 575,267.67 = 147,243 : x
  2. Step 2: Convert to fraction form
    383,730.60/575,267.67 = 147,243/x
  3. Step 3: Cross multiply
    383,730.60x = 575,267.67 × 147,243
  4. Step 4: Simplify right side
    383,730.60x = 84,704,137,533.81
  5. Step 5: Solve for x
    x = 84,704,137,533.81/383,730.60
  6. Step 6: Final answer
    x = 220,738.55

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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.