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Finding the Fourth Proportional to 433,480.80, 650,134.80 and 208,840.80

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Solution

The fourth proportional to 433,480.80, 650,134.80 and 208,840.80 is: 313,219.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,480.80 : 650,134.80 = 208,840.80 : x
  2. Step 2: Convert to fraction form
    433,480.80/650,134.80 = 208,840.80/x
  3. Step 3: Cross multiply
    433,480.80x = 650,134.80 × 208,840.80
  4. Step 4: Simplify right side
    433,480.80x = 135,774,671,739.84
  5. Step 5: Solve for x
    x = 135,774,671,739.84/433,480.80
  6. Step 6: Final answer
    x = 313,219.57

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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.