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Finding the Fourth Proportional to 312,370.08, 468,551.04 and 75,714.80

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Solution

The fourth proportional to 312,370.08, 468,551.04 and 75,714.80 is: 113,571.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,370.08 : 468,551.04 = 75,714.80 : x
  2. Step 2: Convert to fraction form
    312,370.08/468,551.04 = 75,714.80/x
  3. Step 3: Cross multiply
    312,370.08x = 468,551.04 × 75,714.80
  4. Step 4: Simplify right side
    312,370.08x = 35,476,248,283.39
  5. Step 5: Solve for x
    x = 35,476,248,283.39/312,370.08
  6. Step 6: Final answer
    x = 113,571.21

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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.