Home / 398,467.37-549,885.17-226,385.63

Finding the Fourth Proportional to 398,467.37, 549,885.17 and 226,385.63

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Solution

The fourth proportional to 398,467.37, 549,885.17 and 226,385.63 is: 312,412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,467.37 : 549,885.17 = 226,385.63 : x
  2. Step 2: Convert to fraction form
    398,467.37/549,885.17 = 226,385.63/x
  3. Step 3: Cross multiply
    398,467.37x = 549,885.17 × 226,385.63
  4. Step 4: Simplify right side
    398,467.37x = 124,486,099,667.77
  5. Step 5: Solve for x
    x = 124,486,099,667.77/398,467.37
  6. Step 6: Final answer
    x = 312,412.28

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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.