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Finding the Fourth Proportional to 304,584.48, 420,340.32 and 170,448.48

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Solution

The fourth proportional to 304,584.48, 420,340.32 and 170,448.48 is: 235,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,584.48 : 420,340.32 = 170,448.48 : x
  2. Step 2: Convert to fraction form
    304,584.48/420,340.32 = 170,448.48/x
  3. Step 3: Cross multiply
    304,584.48x = 420,340.32 × 170,448.48
  4. Step 4: Simplify right side
    304,584.48x = 71,646,368,626.71
  5. Step 5: Solve for x
    x = 71,646,368,626.71/304,584.48
  6. Step 6: Final answer
    x = 235,226.59

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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.