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Finding the Fourth Proportional to 228,119.22, 342,061.47 and 133,370.28

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Solution

The fourth proportional to 228,119.22, 342,061.47 and 133,370.28 is: 199,986.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,119.22 : 342,061.47 = 133,370.28 : x
  2. Step 2: Convert to fraction form
    228,119.22/342,061.47 = 133,370.28/x
  3. Step 3: Cross multiply
    228,119.22x = 342,061.47 × 133,370.28
  4. Step 4: Simplify right side
    228,119.22x = 45,620,834,031.11
  5. Step 5: Solve for x
    x = 45,620,834,031.11/228,119.22
  6. Step 6: Final answer
    x = 199,986.81

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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.