Home / 387,477.18-534,724.83-213,054.75

Finding the Fourth Proportional to 387,477.18, 534,724.83 and 213,054.75

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Solution

The fourth proportional to 387,477.18, 534,724.83 and 213,054.75 is: 294,019.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,477.18 : 534,724.83 = 213,054.75 : x
  2. Step 2: Convert to fraction form
    387,477.18/534,724.83 = 213,054.75/x
  3. Step 3: Cross multiply
    387,477.18x = 534,724.83 × 213,054.75
  4. Step 4: Simplify right side
    387,477.18x = 113,925,664,974.44
  5. Step 5: Solve for x
    x = 113,925,664,974.44/387,477.18
  6. Step 6: Final answer
    x = 294,019.03

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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.