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Finding the Fourth Proportional to 293,076.80, 439,629.60 and 153,108.80

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Solution

The fourth proportional to 293,076.80, 439,629.60 and 153,108.80 is: 229,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,076.80 : 439,629.60 = 153,108.80 : x
  2. Step 2: Convert to fraction form
    293,076.80/439,629.60 = 153,108.80/x
  3. Step 3: Cross multiply
    293,076.80x = 439,629.60 × 153,108.80
  4. Step 4: Simplify right side
    293,076.80x = 67,311,160,500.48
  5. Step 5: Solve for x
    x = 67,311,160,500.48/293,076.80
  6. Step 6: Final answer
    x = 229,670.72

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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.