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Finding the Fourth Proportional to 315,077.26, 472,462.40 and 104,644.12

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Solution

The fourth proportional to 315,077.26, 472,462.40 and 104,644.12 is: 156,915.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,077.26 : 472,462.40 = 104,644.12 : x
  2. Step 2: Convert to fraction form
    315,077.26/472,462.40 = 104,644.12/x
  3. Step 3: Cross multiply
    315,077.26x = 472,462.40 × 104,644.12
  4. Step 4: Simplify right side
    315,077.26x = 49,440,412,081.09
  5. Step 5: Solve for x
    x = 49,440,412,081.09/315,077.26
  6. Step 6: Final answer
    x = 156,915.20

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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.