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Finding the Fourth Proportional to 368,120.10, 552,698.55 and 289,323.30

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Solution

The fourth proportional to 368,120.10, 552,698.55 and 289,323.30 is: 434,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,120.10 : 552,698.55 = 289,323.30 : x
  2. Step 2: Convert to fraction form
    368,120.10/552,698.55 = 289,323.30/x
  3. Step 3: Cross multiply
    368,120.10x = 552,698.55 × 289,323.30
  4. Step 4: Simplify right side
    368,120.10x = 159,908,568,391.22
  5. Step 5: Solve for x
    x = 159,908,568,391.22/368,120.10
  6. Step 6: Final answer
    x = 434,392.39

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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.