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Finding the Fourth Proportional to 404,888.70, 606,154.43 and 212,306.46

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Solution

The fourth proportional to 404,888.70, 606,154.43 and 212,306.46 is: 317,841.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,888.70 : 606,154.43 = 212,306.46 : x
  2. Step 2: Convert to fraction form
    404,888.70/606,154.43 = 212,306.46/x
  3. Step 3: Cross multiply
    404,888.70x = 606,154.43 × 212,306.46
  4. Step 4: Simplify right side
    404,888.70x = 128,690,499,844.70
  5. Step 5: Solve for x
    x = 128,690,499,844.70/404,888.70
  6. Step 6: Final answer
    x = 317,841.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.