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Finding the Fourth Proportional to 313,635.45, 432,814.59 and 170,396.67

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Solution

The fourth proportional to 313,635.45, 432,814.59 and 170,396.67 is: 235,146.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,635.45 : 432,814.59 = 170,396.67 : x
  2. Step 2: Convert to fraction form
    313,635.45/432,814.59 = 170,396.67/x
  3. Step 3: Cross multiply
    313,635.45x = 432,814.59 × 170,396.67
  4. Step 4: Simplify right side
    313,635.45x = 73,750,164,863.42
  5. Step 5: Solve for x
    x = 73,750,164,863.42/313,635.45
  6. Step 6: Final answer
    x = 235,146.14

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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.