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Finding the Fourth Proportional to 304,394.61, 420,130.77 and 177,086.91

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Solution

The fourth proportional to 304,394.61, 420,130.77 and 177,086.91 is: 244,418.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,394.61 : 420,130.77 = 177,086.91 : x
  2. Step 2: Convert to fraction form
    304,394.61/420,130.77 = 177,086.91/x
  3. Step 3: Cross multiply
    304,394.61x = 420,130.77 × 177,086.91
  4. Step 4: Simplify right side
    304,394.61x = 74,399,659,855.22
  5. Step 5: Solve for x
    x = 74,399,659,855.22/304,394.61
  6. Step 6: Final answer
    x = 244,418.45

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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.