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Finding the Fourth Proportional to 312,480.37, 468,623.82 and 112,775.48

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Solution

The fourth proportional to 312,480.37, 468,623.82 and 112,775.48 is: 169,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,480.37 : 468,623.82 = 112,775.48 : x
  2. Step 2: Convert to fraction form
    312,480.37/468,623.82 = 112,775.48/x
  3. Step 3: Cross multiply
    312,480.37x = 468,623.82 × 112,775.48
  4. Step 4: Simplify right side
    312,480.37x = 52,849,276,239.93
  5. Step 5: Solve for x
    x = 52,849,276,239.93/312,480.37
  6. Step 6: Final answer
    x = 169,128.31

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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.