Home / 286,847.10-396,011.15-218,325.96

Finding the Fourth Proportional to 286,847.10, 396,011.15 and 218,325.96

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Solution

The fourth proportional to 286,847.10, 396,011.15 and 218,325.96 is: 301,413.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,847.10 : 396,011.15 = 218,325.96 : x
  2. Step 2: Convert to fraction form
    286,847.10/396,011.15 = 218,325.96/x
  3. Step 3: Cross multiply
    286,847.10x = 396,011.15 × 218,325.96
  4. Step 4: Simplify right side
    286,847.10x = 86,459,514,494.45
  5. Step 5: Solve for x
    x = 86,459,514,494.45/286,847.10
  6. Step 6: Final answer
    x = 301,413.24

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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.