Home / 397,939.01-549,138.63-216,651.59

Finding the Fourth Proportional to 397,939.01, 549,138.63 and 216,651.59

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Solution

The fourth proportional to 397,939.01, 549,138.63 and 216,651.59 is: 298,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,939.01 : 549,138.63 = 216,651.59 : x
  2. Step 2: Convert to fraction form
    397,939.01/549,138.63 = 216,651.59/x
  3. Step 3: Cross multiply
    397,939.01x = 549,138.63 × 216,651.59
  4. Step 4: Simplify right side
    397,939.01x = 118,971,759,316.18
  5. Step 5: Solve for x
    x = 118,971,759,316.18/397,939.01
  6. Step 6: Final answer
    x = 298,969.83

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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.