Home / 397,799.65-548,976.98-216,518.16

Finding the Fourth Proportional to 397,799.65, 548,976.98 and 216,518.16

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Solution

The fourth proportional to 397,799.65, 548,976.98 and 216,518.16 is: 298,802.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,799.65 : 548,976.98 = 216,518.16 : x
  2. Step 2: Convert to fraction form
    397,799.65/548,976.98 = 216,518.16/x
  3. Step 3: Cross multiply
    397,799.65x = 548,976.98 × 216,518.16
  4. Step 4: Simplify right side
    397,799.65x = 118,863,486,133.25
  5. Step 5: Solve for x
    x = 118,863,486,133.25/397,799.65
  6. Step 6: Final answer
    x = 298,802.39

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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.