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Finding the Fourth Proportional to 439,953.40, 660,148.80 and 173,722.60

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Solution

The fourth proportional to 439,953.40, 660,148.80 and 173,722.60 is: 260,670.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,953.40 : 660,148.80 = 173,722.60 : x
  2. Step 2: Convert to fraction form
    439,953.40/660,148.80 = 173,722.60/x
  3. Step 3: Cross multiply
    439,953.40x = 660,148.80 × 173,722.60
  4. Step 4: Simplify right side
    439,953.40x = 114,682,765,922.88
  5. Step 5: Solve for x
    x = 114,682,765,922.88/439,953.40
  6. Step 6: Final answer
    x = 260,670.26

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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.