Home / 210,388.04-315,738.80-154,372.89

Finding the Fourth Proportional to 210,388.04, 315,738.80 and 154,372.89

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Solution

The fourth proportional to 210,388.04, 315,738.80 and 154,372.89 is: 231,674.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,388.04 : 315,738.80 = 154,372.89 : x
  2. Step 2: Convert to fraction form
    210,388.04/315,738.80 = 154,372.89/x
  3. Step 3: Cross multiply
    210,388.04x = 315,738.80 × 154,372.89
  4. Step 4: Simplify right side
    210,388.04x = 48,741,510,269.27
  5. Step 5: Solve for x
    x = 48,741,510,269.27/210,388.04
  6. Step 6: Final answer
    x = 231,674.35

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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.