Home / 397,262.12-548,226.35-215,970.08

Finding the Fourth Proportional to 397,262.12, 548,226.35 and 215,970.08

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Solution

The fourth proportional to 397,262.12, 548,226.35 and 215,970.08 is: 298,041.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,262.12 : 548,226.35 = 215,970.08 : x
  2. Step 2: Convert to fraction form
    397,262.12/548,226.35 = 215,970.08/x
  3. Step 3: Cross multiply
    397,262.12x = 548,226.35 × 215,970.08
  4. Step 4: Simplify right side
    397,262.12x = 118,400,484,846.63
  5. Step 5: Solve for x
    x = 118,400,484,846.63/397,262.12
  6. Step 6: Final answer
    x = 298,041.22

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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.