Home / 397,948.84-549,166.09-216,660.41

Finding the Fourth Proportional to 397,948.84, 549,166.09 and 216,660.41

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Solution

The fourth proportional to 397,948.84, 549,166.09 and 216,660.41 is: 298,989.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,948.84 : 549,166.09 = 216,660.41 : x
  2. Step 2: Convert to fraction form
    397,948.84/549,166.09 = 216,660.41/x
  3. Step 3: Cross multiply
    397,948.84x = 549,166.09 × 216,660.41
  4. Step 4: Simplify right side
    397,948.84x = 118,982,550,217.50
  5. Step 5: Solve for x
    x = 118,982,550,217.50/397,948.84
  6. Step 6: Final answer
    x = 298,989.56

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1.5x scale

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.