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Finding the Fourth Proportional to 318,019.87, 477,133.35 and 149,556.97

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Solution

The fourth proportional to 318,019.87, 477,133.35 and 149,556.97 is: 224,384.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,019.87 : 477,133.35 = 149,556.97 : x
  2. Step 2: Convert to fraction form
    318,019.87/477,133.35 = 149,556.97/x
  3. Step 3: Cross multiply
    318,019.87x = 477,133.35 × 149,556.97
  4. Step 4: Simplify right side
    318,019.87x = 71,358,617,686.87
  5. Step 5: Solve for x
    x = 71,358,617,686.87/318,019.87
  6. Step 6: Final answer
    x = 224,384.15

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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.