Home / 397,862.14-549,056.76-216,579.28

Finding the Fourth Proportional to 397,862.14, 549,056.76 and 216,579.28

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Solution

The fourth proportional to 397,862.14, 549,056.76 and 216,579.28 is: 298,883.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,862.14 : 549,056.76 = 216,579.28 : x
  2. Step 2: Convert to fraction form
    397,862.14/549,056.76 = 216,579.28/x
  3. Step 3: Cross multiply
    397,862.14x = 549,056.76 × 216,579.28
  4. Step 4: Simplify right side
    397,862.14x = 118,914,317,759.93
  5. Step 5: Solve for x
    x = 118,914,317,759.93/397,862.14
  6. Step 6: Final answer
    x = 298,883.22

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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.