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Finding the Fourth Proportional to 244,645.40, 366,968.10 and 78,450.20

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Solution

The fourth proportional to 244,645.40, 366,968.10 and 78,450.20 is: 117,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,645.40 : 366,968.10 = 78,450.20 : x
  2. Step 2: Convert to fraction form
    244,645.40/366,968.10 = 78,450.20/x
  3. Step 3: Cross multiply
    244,645.40x = 366,968.10 × 78,450.20
  4. Step 4: Simplify right side
    244,645.40x = 28,788,720,838.62
  5. Step 5: Solve for x
    x = 28,788,720,838.62/244,645.40
  6. Step 6: Final answer
    x = 117,675.30

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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.