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Finding the Fourth Proportional to 397,858.46, 549,051.66 and 216,575.60

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Solution

The fourth proportional to 397,858.46, 549,051.66 and 216,575.60 is: 298,878.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,858.46 : 549,051.66 = 216,575.60 : x
  2. Step 2: Convert to fraction form
    397,858.46/549,051.66 = 216,575.60/x
  3. Step 3: Cross multiply
    397,858.46x = 549,051.66 × 216,575.60
  4. Step 4: Simplify right side
    397,858.46x = 118,911,192,695.50
  5. Step 5: Solve for x
    x = 118,911,192,695.50/397,858.46
  6. Step 6: Final answer
    x = 298,878.13

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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.