Home / 397,854.14-549,045.71-216,571.28

Finding the Fourth Proportional to 397,854.14, 549,045.71 and 216,571.28

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Solution

The fourth proportional to 397,854.14, 549,045.71 and 216,571.28 is: 298,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,854.14 : 549,045.71 = 216,571.28 : x
  2. Step 2: Convert to fraction form
    397,854.14/549,045.71 = 216,571.28/x
  3. Step 3: Cross multiply
    397,854.14x = 549,045.71 × 216,571.28
  4. Step 4: Simplify right side
    397,854.14x = 118,907,531,110.35
  5. Step 5: Solve for x
    x = 118,907,531,110.35/397,854.14
  6. Step 6: Final answer
    x = 298,872.17

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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.