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Finding the Fourth Proportional to 397,294.98, 548,277.82 and 216,019.08

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Solution

The fourth proportional to 397,294.98, 548,277.82 and 216,019.08 is: 298,112.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,294.98 : 548,277.82 = 216,019.08 : x
  2. Step 2: Convert to fraction form
    397,294.98/548,277.82 = 216,019.08/x
  3. Step 3: Cross multiply
    397,294.98x = 548,277.82 × 216,019.08
  4. Step 4: Simplify right side
    397,294.98x = 118,438,470,260.81
  5. Step 5: Solve for x
    x = 118,438,470,260.81/397,294.98
  6. Step 6: Final answer
    x = 298,112.17

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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.