Home / 398,467.31-549,885.09-226,385.57

Finding the Fourth Proportional to 398,467.31, 549,885.09 and 226,385.57

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Solution

The fourth proportional to 398,467.31, 549,885.09 and 226,385.57 is: 312,412.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,467.31 : 549,885.09 = 226,385.57 : x
  2. Step 2: Convert to fraction form
    398,467.31/549,885.09 = 226,385.57/x
  3. Step 3: Cross multiply
    398,467.31x = 549,885.09 × 226,385.57
  4. Step 4: Simplify right side
    398,467.31x = 124,486,045,652.80
  5. Step 5: Solve for x
    x = 124,486,045,652.80/398,467.31
  6. Step 6: Final answer
    x = 312,412.20

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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.