Home / 398,512.37-549,939.97-217,225.87

Finding the Fourth Proportional to 398,512.37, 549,939.97 and 217,225.87

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Solution

The fourth proportional to 398,512.37, 549,939.97 and 217,225.87 is: 299,767.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,512.37 : 549,939.97 = 217,225.87 : x
  2. Step 2: Convert to fraction form
    398,512.37/549,939.97 = 217,225.87/x
  3. Step 3: Cross multiply
    398,512.37x = 549,939.97 × 217,225.87
  4. Step 4: Simplify right side
    398,512.37x = 119,461,188,431.02
  5. Step 5: Solve for x
    x = 119,461,188,431.02/398,512.37
  6. Step 6: Final answer
    x = 299,767.83

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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.