Home / 397,839.06-549,032.36-216,542.21

Finding the Fourth Proportional to 397,839.06, 549,032.36 and 216,542.21

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Solution

The fourth proportional to 397,839.06, 549,032.36 and 216,542.21 is: 298,836.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,839.06 : 549,032.36 = 216,542.21 : x
  2. Step 2: Convert to fraction form
    397,839.06/549,032.36 = 216,542.21/x
  3. Step 3: Cross multiply
    397,839.06x = 549,032.36 × 216,542.21
  4. Step 4: Simplify right side
    397,839.06x = 118,888,676,768.04
  5. Step 5: Solve for x
    x = 118,888,676,768.04/397,839.06
  6. Step 6: Final answer
    x = 298,836.11

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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.