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Finding the Fourth Proportional to 153,969.60, 230,911.20 and 48,820.80

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Solution

The fourth proportional to 153,969.60, 230,911.20 and 48,820.80 is: 73,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,969.60 : 230,911.20 = 48,820.80 : x
  2. Step 2: Convert to fraction form
    153,969.60/230,911.20 = 48,820.80/x
  3. Step 3: Cross multiply
    153,969.60x = 230,911.20 × 48,820.80
  4. Step 4: Simplify right side
    153,969.60x = 11,273,269,512.96
  5. Step 5: Solve for x
    x = 11,273,269,512.96/153,969.60
  6. Step 6: Final answer
    x = 73,217.50

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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.