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Finding the Fourth Proportional to 404,007.70, 606,007.80 and 154,689.70

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Solution

The fourth proportional to 404,007.70, 606,007.80 and 154,689.70 is: 232,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,007.70 : 606,007.80 = 154,689.70 : x
  2. Step 2: Convert to fraction form
    404,007.70/606,007.80 = 154,689.70/x
  3. Step 3: Cross multiply
    404,007.70x = 606,007.80 × 154,689.70
  4. Step 4: Simplify right side
    404,007.70x = 93,743,164,779.66
  5. Step 5: Solve for x
    x = 93,743,164,779.66/404,007.70
  6. Step 6: Final answer
    x = 232,033.11

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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.