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Finding the Fourth Proportional to 472,203.38, 651,745.84 and 300,087.78

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Solution

The fourth proportional to 472,203.38, 651,745.84 and 300,087.78 is: 414,187.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,203.38 : 651,745.84 = 300,087.78 : x
  2. Step 2: Convert to fraction form
    472,203.38/651,745.84 = 300,087.78/x
  3. Step 3: Cross multiply
    472,203.38x = 651,745.84 × 300,087.78
  4. Step 4: Simplify right side
    472,203.38x = 195,580,962,249.84
  5. Step 5: Solve for x
    x = 195,580,962,249.84/472,203.38
  6. Step 6: Final answer
    x = 414,187.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.