Home / 257,743.04-355,687.40-143,022.13

Finding the Fourth Proportional to 257,743.04, 355,687.40 and 143,022.13

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Solution

The fourth proportional to 257,743.04, 355,687.40 and 143,022.13 is: 197,371.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,743.04 : 355,687.40 = 143,022.13 : x
  2. Step 2: Convert to fraction form
    257,743.04/355,687.40 = 143,022.13/x
  3. Step 3: Cross multiply
    257,743.04x = 355,687.40 × 143,022.13
  4. Step 4: Simplify right side
    257,743.04x = 50,871,169,030.50
  5. Step 5: Solve for x
    x = 50,871,169,030.50/257,743.04
  6. Step 6: Final answer
    x = 197,371.65

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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.