Home / 210,327.96-315,172.71-154,205.43

Finding the Fourth Proportional to 210,327.96, 315,172.71 and 154,205.43

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Solution

The fourth proportional to 210,327.96, 315,172.71 and 154,205.43 is: 231,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,327.96 : 315,172.71 = 154,205.43 : x
  2. Step 2: Convert to fraction form
    210,327.96/315,172.71 = 154,205.43/x
  3. Step 3: Cross multiply
    210,327.96x = 315,172.71 × 154,205.43
  4. Step 4: Simplify right side
    210,327.96x = 48,601,343,269.82
  5. Step 5: Solve for x
    x = 48,601,343,269.82/210,327.96
  6. Step 6: Final answer
    x = 231,074.10

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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.