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Finding the Fourth Proportional to 379,370.54, 523,775.42 and 243,463.07

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Solution

The fourth proportional to 379,370.54, 523,775.42 and 243,463.07 is: 336,135.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,370.54 : 523,775.42 = 243,463.07 : x
  2. Step 2: Convert to fraction form
    379,370.54/523,775.42 = 243,463.07/x
  3. Step 3: Cross multiply
    379,370.54x = 523,775.42 × 243,463.07
  4. Step 4: Simplify right side
    379,370.54x = 127,519,967,907.55
  5. Step 5: Solve for x
    x = 127,519,967,907.55/379,370.54
  6. Step 6: Final answer
    x = 336,135.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.