Home / 345,928.38-477,199.50-281,469.66

Finding the Fourth Proportional to 345,928.38, 477,199.50 and 281,469.66

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Solution

The fourth proportional to 345,928.38, 477,199.50 and 281,469.66 is: 388,280.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,928.38 : 477,199.50 = 281,469.66 : x
  2. Step 2: Convert to fraction form
    345,928.38/477,199.50 = 281,469.66/x
  3. Step 3: Cross multiply
    345,928.38x = 477,199.50 × 281,469.66
  4. Step 4: Simplify right side
    345,928.38x = 134,317,181,017.17
  5. Step 5: Solve for x
    x = 134,317,181,017.17/345,928.38
  6. Step 6: Final answer
    x = 388,280.32

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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.