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Finding the Fourth Proportional to 398,463.52, 549,846.48 and 228,661.60

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Solution

The fourth proportional to 398,463.52, 549,846.48 and 228,661.60 is: 315,533.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,463.52 : 549,846.48 = 228,661.60 : x
  2. Step 2: Convert to fraction form
    398,463.52/549,846.48 = 228,661.60/x
  3. Step 3: Cross multiply
    398,463.52x = 549,846.48 × 228,661.60
  4. Step 4: Simplify right side
    398,463.52x = 125,728,775,871.17
  5. Step 5: Solve for x
    x = 125,728,775,871.17/398,463.52
  6. Step 6: Final answer
    x = 315,533.97

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1.5x scale

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.