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Finding the Fourth Proportional to 366,518.40, 550,187.20 and 342,454.40

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Solution

The fourth proportional to 366,518.40, 550,187.20 and 342,454.40 is: 514,064.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,518.40 : 550,187.20 = 342,454.40 : x
  2. Step 2: Convert to fraction form
    366,518.40/550,187.20 = 342,454.40/x
  3. Step 3: Cross multiply
    366,518.40x = 550,187.20 × 342,454.40
  4. Step 4: Simplify right side
    366,518.40x = 188,414,027,463.68
  5. Step 5: Solve for x
    x = 188,414,027,463.68/366,518.40
  6. Step 6: Final answer
    x = 514,064.31

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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.