Home / 398,289.46-549,842.59-269,906.18

Finding the Fourth Proportional to 398,289.46, 549,842.59 and 269,906.18

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Solution

The fourth proportional to 398,289.46, 549,842.59 and 269,906.18 is: 372,608.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,289.46 : 549,842.59 = 269,906.18 : x
  2. Step 2: Convert to fraction form
    398,289.46/549,842.59 = 269,906.18/x
  3. Step 3: Cross multiply
    398,289.46x = 549,842.59 × 269,906.18
  4. Step 4: Simplify right side
    398,289.46x = 148,405,913,068.21
  5. Step 5: Solve for x
    x = 148,405,913,068.21/398,289.46
  6. Step 6: Final answer
    x = 372,608.19

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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.