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Finding the Fourth Proportional to 366,954.30, 550,431.45 and 320,298.30

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Solution

The fourth proportional to 366,954.30, 550,431.45 and 320,298.30 is: 480,447.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,954.30 : 550,431.45 = 320,298.30 : x
  2. Step 2: Convert to fraction form
    366,954.30/550,431.45 = 320,298.30/x
  3. Step 3: Cross multiply
    366,954.30x = 550,431.45 × 320,298.30
  4. Step 4: Simplify right side
    366,954.30x = 176,302,257,701.54
  5. Step 5: Solve for x
    x = 176,302,257,701.54/366,954.30
  6. Step 6: Final answer
    x = 480,447.45

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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.