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Finding the Fourth Proportional to 209,333.73, 314,000.73 and 90,940.50

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Solution

The fourth proportional to 209,333.73, 314,000.73 and 90,940.50 is: 136,410.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,333.73 : 314,000.73 = 90,940.50 : x
  2. Step 2: Convert to fraction form
    209,333.73/314,000.73 = 90,940.50/x
  3. Step 3: Cross multiply
    209,333.73x = 314,000.73 × 90,940.50
  4. Step 4: Simplify right side
    209,333.73x = 28,555,383,386.57
  5. Step 5: Solve for x
    x = 28,555,383,386.57/209,333.73
  6. Step 6: Final answer
    x = 136,410.81

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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.