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Finding the Fourth Proportional to 304,653.69, 420,435.23 and 168,687.63

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Solution

The fourth proportional to 304,653.69, 420,435.23 and 168,687.63 is: 232,796.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,653.69 : 420,435.23 = 168,687.63 : x
  2. Step 2: Convert to fraction form
    304,653.69/420,435.23 = 168,687.63/x
  3. Step 3: Cross multiply
    304,653.69x = 420,435.23 × 168,687.63
  4. Step 4: Simplify right side
    304,653.69x = 70,922,221,673.77
  5. Step 5: Solve for x
    x = 70,922,221,673.77/304,653.69
  6. Step 6: Final answer
    x = 232,796.20

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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.