Home / 255,317.07-352,338.08-142,143.87

Finding the Fourth Proportional to 255,317.07, 352,338.08 and 142,143.87

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Solution

The fourth proportional to 255,317.07, 352,338.08 and 142,143.87 is: 196,158.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,317.07 : 352,338.08 = 142,143.87 : x
  2. Step 2: Convert to fraction form
    255,317.07/352,338.08 = 142,143.87/x
  3. Step 3: Cross multiply
    255,317.07x = 352,338.08 × 142,143.87
  4. Step 4: Simplify right side
    255,317.07x = 50,082,697,528.85
  5. Step 5: Solve for x
    x = 50,082,697,528.85/255,317.07
  6. Step 6: Final answer
    x = 196,158.83

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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.