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Finding the Fourth Proportional to 342,554.28, 513,240.80 and 227,077.98

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Solution

The fourth proportional to 342,554.28, 513,240.80 and 227,077.98 is: 340,225.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,554.28 : 513,240.80 = 227,077.98 : x
  2. Step 2: Convert to fraction form
    342,554.28/513,240.80 = 227,077.98/x
  3. Step 3: Cross multiply
    342,554.28x = 513,240.80 × 227,077.98
  4. Step 4: Simplify right side
    342,554.28x = 116,545,682,982.19
  5. Step 5: Solve for x
    x = 116,545,682,982.19/342,554.28
  6. Step 6: Final answer
    x = 340,225.45

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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.