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Finding the Fourth Proportional to 443,722.90, 664,709.55 and 265,701.10

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Solution

The fourth proportional to 443,722.90, 664,709.55 and 265,701.10 is: 398,027.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,722.90 : 664,709.55 = 265,701.10 : x
  2. Step 2: Convert to fraction form
    443,722.90/664,709.55 = 265,701.10/x
  3. Step 3: Cross multiply
    443,722.90x = 664,709.55 × 265,701.10
  4. Step 4: Simplify right side
    443,722.90x = 176,614,058,615.51
  5. Step 5: Solve for x
    x = 176,614,058,615.51/443,722.90
  6. Step 6: Final answer
    x = 398,027.82

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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.