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Finding the Fourth Proportional to 298,448.91, 447,391.95 and 148,547.49

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Solution

The fourth proportional to 298,448.91, 447,391.95 and 148,547.49 is: 222,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,448.91 : 447,391.95 = 148,547.49 : x
  2. Step 2: Convert to fraction form
    298,448.91/447,391.95 = 148,547.49/x
  3. Step 3: Cross multiply
    298,448.91x = 447,391.95 × 148,547.49
  4. Step 4: Simplify right side
    298,448.91x = 66,458,951,218.71
  5. Step 5: Solve for x
    x = 66,458,951,218.71/298,448.91
  6. Step 6: Final answer
    x = 222,681.17

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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.