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Finding the Fourth Proportional to 351,488.98, 485,055.06 and 190,344.19

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Solution

The fourth proportional to 351,488.98, 485,055.06 and 190,344.19 is: 262,675.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,488.98 : 485,055.06 = 190,344.19 : x
  2. Step 2: Convert to fraction form
    351,488.98/485,055.06 = 190,344.19/x
  3. Step 3: Cross multiply
    351,488.98x = 485,055.06 × 190,344.19
  4. Step 4: Simplify right side
    351,488.98x = 92,327,412,501.10
  5. Step 5: Solve for x
    x = 92,327,412,501.10/351,488.98
  6. Step 6: Final answer
    x = 262,675.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.