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Finding the Fourth Proportional to 318,141.54, 477,212.40 and 149,538.06

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Solution

The fourth proportional to 318,141.54, 477,212.40 and 149,538.06 is: 224,307.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,141.54 : 477,212.40 = 149,538.06 : x
  2. Step 2: Convert to fraction form
    318,141.54/477,212.40 = 149,538.06/x
  3. Step 3: Cross multiply
    318,141.54x = 477,212.40 × 149,538.06
  4. Step 4: Simplify right side
    318,141.54x = 71,361,416,503.94
  5. Step 5: Solve for x
    x = 71,361,416,503.94/318,141.54
  6. Step 6: Final answer
    x = 224,307.13

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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.