Home / 397,873.27-549,065.18-216,586.58

Finding the Fourth Proportional to 397,873.27, 549,065.18 and 216,586.58

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Solution

The fourth proportional to 397,873.27, 549,065.18 and 216,586.58 is: 298,889.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,873.27 : 549,065.18 = 216,586.58 : x
  2. Step 2: Convert to fraction form
    397,873.27/549,065.18 = 216,586.58/x
  3. Step 3: Cross multiply
    397,873.27x = 549,065.18 × 216,586.58
  4. Step 4: Simplify right side
    397,873.27x = 118,920,145,705.03
  5. Step 5: Solve for x
    x = 118,920,145,705.03/397,873.27
  6. Step 6: Final answer
    x = 298,889.51

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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.