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Finding the Fourth Proportional to 244,615.40, 366,923.10 and 78,420.20

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Solution

The fourth proportional to 244,615.40, 366,923.10 and 78,420.20 is: 117,630.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    244,615.40 : 366,923.10 = 78,420.20 : x
  2. Step 2: Convert to fraction form
    244,615.40/366,923.10 = 78,420.20/x
  3. Step 3: Cross multiply
    244,615.40x = 366,923.10 × 78,420.20
  4. Step 4: Simplify right side
    244,615.40x = 28,774,182,886.62
  5. Step 5: Solve for x
    x = 28,774,182,886.62/244,615.40
  6. Step 6: Final answer
    x = 117,630.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.