Home / 213,860.39-294,823.10-145,790.01

Finding the Fourth Proportional to 213,860.39, 294,823.10 and 145,790.01

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Solution

The fourth proportional to 213,860.39, 294,823.10 and 145,790.01 is: 200,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,860.39 : 294,823.10 = 145,790.01 : x
  2. Step 2: Convert to fraction form
    213,860.39/294,823.10 = 145,790.01/x
  3. Step 3: Cross multiply
    213,860.39x = 294,823.10 × 145,790.01
  4. Step 4: Simplify right side
    213,860.39x = 42,982,261,968.28
  5. Step 5: Solve for x
    x = 42,982,261,968.28/213,860.39
  6. Step 6: Final answer
    x = 200,982.81

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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.