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Finding the Fourth Proportional to 213,911.53, 295,111.40 and 123,218.92

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Solution

The fourth proportional to 213,911.53, 295,111.40 and 123,218.92 is: 169,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,911.53 : 295,111.40 = 123,218.92 : x
  2. Step 2: Convert to fraction form
    213,911.53/295,111.40 = 123,218.92/x
  3. Step 3: Cross multiply
    213,911.53x = 295,111.40 × 123,218.92
  4. Step 4: Simplify right side
    213,911.53x = 36,363,308,433.59
  5. Step 5: Solve for x
    x = 36,363,308,433.59/213,911.53
  6. Step 6: Final answer
    x = 169,992.28

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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.