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Finding the Fourth Proportional to 350,640, 483,883.20 and 191,664

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Solution

The fourth proportional to 350,640, 483,883.20 and 191,664 is: 264,496.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,640 : 483,883.20 = 191,664 : x
  2. Step 2: Convert to fraction form
    350,640/483,883.20 = 191,664/x
  3. Step 3: Cross multiply
    350,640x = 483,883.20 × 191,664
  4. Step 4: Simplify right side
    350,640x = 92,742,989,644.80
  5. Step 5: Solve for x
    x = 92,742,989,644.80/350,640
  6. Step 6: Final answer
    x = 264,496.32

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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.