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Finding the Fourth Proportional to 320,292.88, 479,248.92 and 201,408.40

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Solution

The fourth proportional to 320,292.88, 479,248.92 and 201,408.40 is: 301,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,292.88 : 479,248.92 = 201,408.40 : x
  2. Step 2: Convert to fraction form
    320,292.88/479,248.92 = 201,408.40/x
  3. Step 3: Cross multiply
    320,292.88x = 479,248.92 × 201,408.40
  4. Step 4: Simplify right side
    320,292.88x = 96,524,758,178.93
  5. Step 5: Solve for x
    x = 96,524,758,178.93/320,292.88
  6. Step 6: Final answer
    x = 301,364.05

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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.