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Finding the Fourth Proportional to 318,345.54, 477,522.06 and 126,266.81

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Solution

The fourth proportional to 318,345.54, 477,522.06 and 126,266.81 is: 189,401.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,345.54 : 477,522.06 = 126,266.81 : x
  2. Step 2: Convert to fraction form
    318,345.54/477,522.06 = 126,266.81/x
  3. Step 3: Cross multiply
    318,345.54x = 477,522.06 × 126,266.81
  4. Step 4: Simplify right side
    318,345.54x = 60,295,184,833.22
  5. Step 5: Solve for x
    x = 60,295,184,833.22/318,345.54
  6. Step 6: Final answer
    x = 189,401.69

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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.