Home / 397,712.43-548,854.70-216,436.05

Finding the Fourth Proportional to 397,712.43, 548,854.70 and 216,436.05

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Solution

The fourth proportional to 397,712.43, 548,854.70 and 216,436.05 is: 298,688.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,712.43 : 548,854.70 = 216,436.05 : x
  2. Step 2: Convert to fraction form
    397,712.43/548,854.70 = 216,436.05/x
  3. Step 3: Cross multiply
    397,712.43x = 548,854.70 × 216,436.05
  4. Step 4: Simplify right side
    397,712.43x = 118,791,943,291.94
  5. Step 5: Solve for x
    x = 118,791,943,291.94/397,712.43
  6. Step 6: Final answer
    x = 298,688.03

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1.5x scale

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.