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Finding the Fourth Proportional to 255,804.32, 383,641.02 and 75,847.65

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Solution

The fourth proportional to 255,804.32, 383,641.02 and 75,847.65 is: 113,752.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,804.32 : 383,641.02 = 75,847.65 : x
  2. Step 2: Convert to fraction form
    255,804.32/383,641.02 = 75,847.65/x
  3. Step 3: Cross multiply
    255,804.32x = 383,641.02 × 75,847.65
  4. Step 4: Simplify right side
    255,804.32x = 29,098,269,810.60
  5. Step 5: Solve for x
    x = 29,098,269,810.60/255,804.32
  6. Step 6: Final answer
    x = 113,752.07

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1.5x scale

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.