Home / 345,409.57-518,232.03-210,743.25

Finding the Fourth Proportional to 345,409.57, 518,232.03 and 210,743.25

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Solution

The fourth proportional to 345,409.57, 518,232.03 and 210,743.25 is: 316,186.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,409.57 : 518,232.03 = 210,743.25 : x
  2. Step 2: Convert to fraction form
    345,409.57/518,232.03 = 210,743.25/x
  3. Step 3: Cross multiply
    345,409.57x = 518,232.03 × 210,743.25
  4. Step 4: Simplify right side
    345,409.57x = 109,213,902,256.30
  5. Step 5: Solve for x
    x = 109,213,902,256.30/345,409.57
  6. Step 6: Final answer
    x = 316,186.67

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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.