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Finding the Fourth Proportional to 398,004.52, 549,218.46 and 225,925.96

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Solution

The fourth proportional to 398,004.52, 549,218.46 and 225,925.96 is: 311,762.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,004.52 : 549,218.46 = 225,925.96 : x
  2. Step 2: Convert to fraction form
    398,004.52/549,218.46 = 225,925.96/x
  3. Step 3: Cross multiply
    398,004.52x = 549,218.46 × 225,925.96
  4. Step 4: Simplify right side
    398,004.52x = 124,082,707,825.22
  5. Step 5: Solve for x
    x = 124,082,707,825.22/398,004.52
  6. Step 6: Final answer
    x = 311,762.06

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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.