Home / 398,318.63-549,685.17-228,552.75

Finding the Fourth Proportional to 398,318.63, 549,685.17 and 228,552.75

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Solution

The fourth proportional to 398,318.63, 549,685.17 and 228,552.75 is: 315,405.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,318.63 : 549,685.17 = 228,552.75 : x
  2. Step 2: Convert to fraction form
    398,318.63/549,685.17 = 228,552.75/x
  3. Step 3: Cross multiply
    398,318.63x = 549,685.17 × 228,552.75
  4. Step 4: Simplify right side
    398,318.63x = 125,632,057,237.72
  5. Step 5: Solve for x
    x = 125,632,057,237.72/398,318.63
  6. Step 6: Final answer
    x = 315,405.93

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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.