Home / 421,928.16-582,266.32-230,937.45

Finding the Fourth Proportional to 421,928.16, 582,266.32 and 230,937.45

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Solution

The fourth proportional to 421,928.16, 582,266.32 and 230,937.45 is: 318,696.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,928.16 : 582,266.32 = 230,937.45 : x
  2. Step 2: Convert to fraction form
    421,928.16/582,266.32 = 230,937.45/x
  3. Step 3: Cross multiply
    421,928.16x = 582,266.32 × 230,937.45
  4. Step 4: Simplify right side
    421,928.16x = 134,467,097,699.87
  5. Step 5: Solve for x
    x = 134,467,097,699.87/421,928.16
  6. Step 6: Final answer
    x = 318,696.67

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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.