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Finding the Fourth Proportional to 304,348.79, 420,135.86 and 181,884.39

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Solution

The fourth proportional to 304,348.79, 420,135.86 and 181,884.39 is: 251,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,348.79 : 420,135.86 = 181,884.39 : x
  2. Step 2: Convert to fraction form
    304,348.79/420,135.86 = 181,884.39/x
  3. Step 3: Cross multiply
    304,348.79x = 420,135.86 × 181,884.39
  4. Step 4: Simplify right side
    304,348.79x = 76,416,154,613.23
  5. Step 5: Solve for x
    x = 76,416,154,613.23/304,348.79
  6. Step 6: Final answer
    x = 251,080.86

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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.