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Finding the Fourth Proportional to 318,872.32, 440,063.74 and 175,632.32

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Solution

The fourth proportional to 318,872.32, 440,063.74 and 175,632.32 is: 242,383.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,872.32 : 440,063.74 = 175,632.32 : x
  2. Step 2: Convert to fraction form
    318,872.32/440,063.74 = 175,632.32/x
  3. Step 3: Cross multiply
    318,872.32x = 440,063.74 × 175,632.32
  4. Step 4: Simplify right side
    318,872.32x = 77,289,415,604.08
  5. Step 5: Solve for x
    x = 77,289,415,604.08/318,872.32
  6. Step 6: Final answer
    x = 242,383.58

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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.