Home / 397,474.07-548,485.98-216,182.30

Finding the Fourth Proportional to 397,474.07, 548,485.98 and 216,182.30

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Solution

The fourth proportional to 397,474.07, 548,485.98 and 216,182.30 is: 298,316.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,474.07 : 548,485.98 = 216,182.30 : x
  2. Step 2: Convert to fraction form
    397,474.07/548,485.98 = 216,182.30/x
  3. Step 3: Cross multiply
    397,474.07x = 548,485.98 × 216,182.30
  4. Step 4: Simplify right side
    397,474.07x = 118,572,960,674.15
  5. Step 5: Solve for x
    x = 118,572,960,674.15/397,474.07
  6. Step 6: Final answer
    x = 298,316.22

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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.