Home / 286,846.10-396,009.77-218,324.96

Finding the Fourth Proportional to 286,846.10, 396,009.77 and 218,324.96

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Solution

The fourth proportional to 286,846.10, 396,009.77 and 218,324.96 is: 301,411.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,846.10 : 396,009.77 = 218,324.96 : x
  2. Step 2: Convert to fraction form
    286,846.10/396,009.77 = 218,324.96/x
  3. Step 3: Cross multiply
    286,846.10x = 396,009.77 × 218,324.96
  4. Step 4: Simplify right side
    286,846.10x = 86,458,814,123.19
  5. Step 5: Solve for x
    x = 86,458,814,123.19/286,846.10
  6. Step 6: Final answer
    x = 301,411.86

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1.5x scale

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.