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Finding the Fourth Proportional to 218,684.34, 301,790.61 and 210,752.82

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Solution

The fourth proportional to 218,684.34, 301,790.61 and 210,752.82 is: 290,844.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,684.34 : 301,790.61 = 210,752.82 : x
  2. Step 2: Convert to fraction form
    218,684.34/301,790.61 = 210,752.82/x
  3. Step 3: Cross multiply
    218,684.34x = 301,790.61 × 210,752.82
  4. Step 4: Simplify right side
    218,684.34x = 63,603,222,107.02
  5. Step 5: Solve for x
    x = 63,603,222,107.02/218,684.34
  6. Step 6: Final answer
    x = 290,844.89

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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.