Home / 255,316.32-352,337.04-142,143.12

Finding the Fourth Proportional to 255,316.32, 352,337.04 and 142,143.12

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Solution

The fourth proportional to 255,316.32, 352,337.04 and 142,143.12 is: 196,157.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,316.32 : 352,337.04 = 142,143.12 : x
  2. Step 2: Convert to fraction form
    255,316.32/352,337.04 = 142,143.12/x
  3. Step 3: Cross multiply
    255,316.32x = 352,337.04 × 142,143.12
  4. Step 4: Simplify right side
    255,316.32x = 50,082,286,157.16
  5. Step 5: Solve for x
    x = 50,082,286,157.16/255,316.32
  6. Step 6: Final answer
    x = 196,157.79

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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.