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Finding the Fourth Proportional to 464,243.16, 640,935 and 303,367.44

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Solution

The fourth proportional to 464,243.16, 640,935 and 303,367.44 is: 418,829.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,243.16 : 640,935 = 303,367.44 : x
  2. Step 2: Convert to fraction form
    464,243.16/640,935 = 303,367.44/x
  3. Step 3: Cross multiply
    464,243.16x = 640,935 × 303,367.44
  4. Step 4: Simplify right side
    464,243.16x = 194,438,810,156.40
  5. Step 5: Solve for x
    x = 194,438,810,156.40/464,243.16
  6. Step 6: Final answer
    x = 418,829.67

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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.