Home / 397,949.84-549,167.48-216,661.40

Finding the Fourth Proportional to 397,949.84, 549,167.48 and 216,661.40

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Solution

The fourth proportional to 397,949.84, 549,167.48 and 216,661.40 is: 298,990.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,949.84 : 549,167.48 = 216,661.40 : x
  2. Step 2: Convert to fraction form
    397,949.84/549,167.48 = 216,661.40/x
  3. Step 3: Cross multiply
    397,949.84x = 549,167.48 × 216,661.40
  4. Step 4: Simplify right side
    397,949.84x = 118,983,395,051.27
  5. Step 5: Solve for x
    x = 118,983,395,051.27/397,949.84
  6. Step 6: Final answer
    x = 298,990.94

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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.