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Finding the Fourth Proportional to 399,158.04, 598,418.94 and 230,486.88

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Solution

The fourth proportional to 399,158.04, 598,418.94 and 230,486.88 is: 345,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,158.04 : 598,418.94 = 230,486.88 : x
  2. Step 2: Convert to fraction form
    399,158.04/598,418.94 = 230,486.88/x
  3. Step 3: Cross multiply
    399,158.04x = 598,418.94 × 230,486.88
  4. Step 4: Simplify right side
    399,158.04x = 137,927,714,413.51
  5. Step 5: Solve for x
    x = 137,927,714,413.51/399,158.04
  6. Step 6: Final answer
    x = 345,546.63

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1.5x scale

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.