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Finding the Fourth Proportional to 367,003.60, 550,505.40 and 340,431.55

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Solution

The fourth proportional to 367,003.60, 550,505.40 and 340,431.55 is: 510,647.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,003.60 : 550,505.40 = 340,431.55 : x
  2. Step 2: Convert to fraction form
    367,003.60/550,505.40 = 340,431.55/x
  3. Step 3: Cross multiply
    367,003.60x = 550,505.40 × 340,431.55
  4. Step 4: Simplify right side
    367,003.60x = 187,409,406,605.37
  5. Step 5: Solve for x
    x = 187,409,406,605.37/367,003.60
  6. Step 6: Final answer
    x = 510,647.33

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1.5x scale

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.