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Finding the Fourth Proportional to 489,990.09, 735,193.14 and 237,458.55

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Solution

The fourth proportional to 489,990.09, 735,193.14 and 237,458.55 is: 356,288.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,990.09 : 735,193.14 = 237,458.55 : x
  2. Step 2: Convert to fraction form
    489,990.09/735,193.14 = 237,458.55/x
  3. Step 3: Cross multiply
    489,990.09x = 735,193.14 × 237,458.55
  4. Step 4: Simplify right side
    489,990.09x = 174,577,896,994.35
  5. Step 5: Solve for x
    x = 174,577,896,994.35/489,990.09
  6. Step 6: Final answer
    x = 356,288.63

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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.