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Finding the Fourth Proportional to 404,008.70, 606,009.30 and 154,690.70

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Solution

The fourth proportional to 404,008.70, 606,009.30 and 154,690.70 is: 232,034.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,008.70 : 606,009.30 = 154,690.70 : x
  2. Step 2: Convert to fraction form
    404,008.70/606,009.30 = 154,690.70/x
  3. Step 3: Cross multiply
    404,008.70x = 606,009.30 × 154,690.70
  4. Step 4: Simplify right side
    404,008.70x = 93,744,002,823.51
  5. Step 5: Solve for x
    x = 93,744,002,823.51/404,008.70
  6. Step 6: Final answer
    x = 232,034.61

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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.