Home / 345,930.64-477,202.75-281,471.85

Finding the Fourth Proportional to 345,930.64, 477,202.75 and 281,471.85

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Solution

The fourth proportional to 345,930.64, 477,202.75 and 281,471.85 is: 388,283.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,930.64 : 477,202.75 = 281,471.85 : x
  2. Step 2: Convert to fraction form
    345,930.64/477,202.75 = 281,471.85/x
  3. Step 3: Cross multiply
    345,930.64x = 477,202.75 × 281,471.85
  4. Step 4: Simplify right side
    345,930.64x = 134,319,140,163.91
  5. Step 5: Solve for x
    x = 134,319,140,163.91/345,930.64
  6. Step 6: Final answer
    x = 388,283.45

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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.