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Finding the Fourth Proportional to 303,634.80, 455,160.60 and 236,129.40

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Solution

The fourth proportional to 303,634.80, 455,160.60 and 236,129.40 is: 353,967.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,634.80 : 455,160.60 = 236,129.40 : x
  2. Step 2: Convert to fraction form
    303,634.80/455,160.60 = 236,129.40/x
  3. Step 3: Cross multiply
    303,634.80x = 455,160.60 × 236,129.40
  4. Step 4: Simplify right side
    303,634.80x = 107,476,799,381.64
  5. Step 5: Solve for x
    x = 107,476,799,381.64/303,634.80
  6. Step 6: Final answer
    x = 353,967.33

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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.