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Finding the Fourth Proportional to 489,838.73, 735,037.92 and 190,280.33

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Solution

The fourth proportional to 489,838.73, 735,037.92 and 190,280.33 is: 285,529.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,838.73 : 735,037.92 = 190,280.33 : x
  2. Step 2: Convert to fraction form
    489,838.73/735,037.92 = 190,280.33/x
  3. Step 3: Cross multiply
    489,838.73x = 735,037.92 × 190,280.33
  4. Step 4: Simplify right side
    489,838.73x = 139,863,257,980.11
  5. Step 5: Solve for x
    x = 139,863,257,980.11/489,838.73
  6. Step 6: Final answer
    x = 285,529.19

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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.