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Finding the Fourth Proportional to 404,235.70, 606,355.65 and 104,695.30

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Solution

The fourth proportional to 404,235.70, 606,355.65 and 104,695.30 is: 157,043.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,235.70 : 606,355.65 = 104,695.30 : x
  2. Step 2: Convert to fraction form
    404,235.70/606,355.65 = 104,695.30/x
  3. Step 3: Cross multiply
    404,235.70x = 606,355.65 × 104,695.30
  4. Step 4: Simplify right side
    404,235.70x = 63,482,586,683.45
  5. Step 5: Solve for x
    x = 63,482,586,683.45/404,235.70
  6. Step 6: Final answer
    x = 157,043.49

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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.