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Finding the Fourth Proportional to 484,176.38, 668,163.40 and 272,208.38

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Solution

The fourth proportional to 484,176.38, 668,163.40 and 272,208.38 is: 375,647.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,176.38 : 668,163.40 = 272,208.38 : x
  2. Step 2: Convert to fraction form
    484,176.38/668,163.40 = 272,208.38/x
  3. Step 3: Cross multiply
    484,176.38x = 668,163.40 × 272,208.38
  4. Step 4: Simplify right side
    484,176.38x = 181,879,672,667.95
  5. Step 5: Solve for x
    x = 181,879,672,667.95/484,176.38
  6. Step 6: Final answer
    x = 375,647.56

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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.