Home / 397,713.43-548,856.08-216,437.05

Finding the Fourth Proportional to 397,713.43, 548,856.08 and 216,437.05

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Solution

The fourth proportional to 397,713.43, 548,856.08 and 216,437.05 is: 298,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,713.43 : 548,856.08 = 216,437.05 : x
  2. Step 2: Convert to fraction form
    397,713.43/548,856.08 = 216,437.05/x
  3. Step 3: Cross multiply
    397,713.43x = 548,856.08 × 216,437.05
  4. Step 4: Simplify right side
    397,713.43x = 118,792,790,829.76
  5. Step 5: Solve for x
    x = 118,792,790,829.76/397,713.43
  6. Step 6: Final answer
    x = 298,689.41

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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.