Home / 397,947.84-549,164.71-216,659.41

Finding the Fourth Proportional to 397,947.84, 549,164.71 and 216,659.41

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Solution

The fourth proportional to 397,947.84, 549,164.71 and 216,659.41 is: 298,988.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,947.84 : 549,164.71 = 216,659.41 : x
  2. Step 2: Convert to fraction form
    397,947.84/549,164.71 = 216,659.41/x
  3. Step 3: Cross multiply
    397,947.84x = 549,164.71 × 216,659.41
  4. Step 4: Simplify right side
    397,947.84x = 118,981,700,959.33
  5. Step 5: Solve for x
    x = 118,981,700,959.33/397,947.84
  6. Step 6: Final answer
    x = 298,988.18

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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.