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Finding the Fourth Proportional to 366,899.80, 550,349.70 and 330,158.20

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Solution

The fourth proportional to 366,899.80, 550,349.70 and 330,158.20 is: 495,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,899.80 : 550,349.70 = 330,158.20 : x
  2. Step 2: Convert to fraction form
    366,899.80/550,349.70 = 330,158.20/x
  3. Step 3: Cross multiply
    366,899.80x = 550,349.70 × 330,158.20
  4. Step 4: Simplify right side
    366,899.80x = 181,702,466,322.54
  5. Step 5: Solve for x
    x = 181,702,466,322.54/366,899.80
  6. Step 6: Final answer
    x = 495,237.30

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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.