Home / 397,869.41-549,059.85-216,582.70

Finding the Fourth Proportional to 397,869.41, 549,059.85 and 216,582.70

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Solution

The fourth proportional to 397,869.41, 549,059.85 and 216,582.70 is: 298,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,869.41 : 549,059.85 = 216,582.70 : x
  2. Step 2: Convert to fraction form
    397,869.41/549,059.85 = 216,582.70/x
  3. Step 3: Cross multiply
    397,869.41x = 549,059.85 × 216,582.70
  4. Step 4: Simplify right side
    397,869.41x = 118,916,863,401.95
  5. Step 5: Solve for x
    x = 118,916,863,401.95/397,869.41
  6. Step 6: Final answer
    x = 298,884.16

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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.