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Finding the Fourth Proportional to 397,855.89, 549,048.14 and 216,573.03

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Solution

The fourth proportional to 397,855.89, 549,048.14 and 216,573.03 is: 298,874.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,855.89 : 549,048.14 = 216,573.03 : x
  2. Step 2: Convert to fraction form
    397,855.89/549,048.14 = 216,573.03/x
  3. Step 3: Cross multiply
    397,855.89x = 549,048.14 × 216,573.03
  4. Step 4: Simplify right side
    397,855.89x = 118,909,018,212.80
  5. Step 5: Solve for x
    x = 118,909,018,212.80/397,855.89
  6. Step 6: Final answer
    x = 298,874.60

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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.