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Finding the Fourth Proportional to 228,145.42, 343,758.28 and 189,034.67

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Solution

The fourth proportional to 228,145.42, 343,758.28 and 189,034.67 is: 284,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,145.42 : 343,758.28 = 189,034.67 : x
  2. Step 2: Convert to fraction form
    228,145.42/343,758.28 = 189,034.67/x
  3. Step 3: Cross multiply
    228,145.42x = 343,758.28 × 189,034.67
  4. Step 4: Simplify right side
    228,145.42x = 64,982,232,074.39
  5. Step 5: Solve for x
    x = 64,982,232,074.39/228,145.42
  6. Step 6: Final answer
    x = 284,828.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.