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Finding the Fourth Proportional to 312,879.16, 469,111.36 and 113,173.24

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Solution

The fourth proportional to 312,879.16, 469,111.36 and 113,173.24 is: 169,684.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,879.16 : 469,111.36 = 113,173.24 : x
  2. Step 2: Convert to fraction form
    312,879.16/469,111.36 = 113,173.24/x
  3. Step 3: Cross multiply
    312,879.16x = 469,111.36 × 113,173.24
  4. Step 4: Simplify right side
    312,879.16x = 53,090,852,532.01
  5. Step 5: Solve for x
    x = 53,090,852,532.01/312,879.16
  6. Step 6: Final answer
    x = 169,684.85

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1.5x scale

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.