Home / 257,875.03-355,868.13-143,155.36

Finding the Fourth Proportional to 257,875.03, 355,868.13 and 143,155.36

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Solution

The fourth proportional to 257,875.03, 355,868.13 and 143,155.36 is: 197,554.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,875.03 : 355,868.13 = 143,155.36 : x
  2. Step 2: Convert to fraction form
    257,875.03/355,868.13 = 143,155.36/x
  3. Step 3: Cross multiply
    257,875.03x = 355,868.13 × 143,155.36
  4. Step 4: Simplify right side
    257,875.03x = 50,944,430,262.68
  5. Step 5: Solve for x
    x = 50,944,430,262.68/257,875.03
  6. Step 6: Final answer
    x = 197,554.72

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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.