Home / 397,938.29-549,166.32-216,653.27

Finding the Fourth Proportional to 397,938.29, 549,166.32 and 216,653.27

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Solution

The fourth proportional to 397,938.29, 549,166.32 and 216,653.27 is: 298,987.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,938.29 : 549,166.32 = 216,653.27 : x
  2. Step 2: Convert to fraction form
    397,938.29/549,166.32 = 216,653.27/x
  3. Step 3: Cross multiply
    397,938.29x = 549,166.32 × 216,653.27
  4. Step 4: Simplify right side
    397,938.29x = 118,978,676,256.04
  5. Step 5: Solve for x
    x = 118,978,676,256.04/397,938.29
  6. Step 6: Final answer
    x = 298,987.76

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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.