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Finding the Fourth Proportional to 312,297.75, 468,450.45 and 109,899.89

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Solution

The fourth proportional to 312,297.75, 468,450.45 and 109,899.89 is: 164,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,297.75 : 468,450.45 = 109,899.89 : x
  2. Step 2: Convert to fraction form
    312,297.75/468,450.45 = 109,899.89/x
  3. Step 3: Cross multiply
    312,297.75x = 468,450.45 × 109,899.89
  4. Step 4: Simplify right side
    312,297.75x = 51,482,652,925.45
  5. Step 5: Solve for x
    x = 51,482,652,925.45/312,297.75
  6. Step 6: Final answer
    x = 164,851.18

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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.