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Finding the Fourth Proportional to 318,129.54, 477,194.40 and 149,526.06

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Solution

The fourth proportional to 318,129.54, 477,194.40 and 149,526.06 is: 224,289.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,129.54 : 477,194.40 = 149,526.06 : x
  2. Step 2: Convert to fraction form
    318,129.54/477,194.40 = 149,526.06/x
  3. Step 3: Cross multiply
    318,129.54x = 477,194.40 × 149,526.06
  4. Step 4: Simplify right side
    318,129.54x = 71,352,998,486.06
  5. Step 5: Solve for x
    x = 71,352,998,486.06/318,129.54
  6. Step 6: Final answer
    x = 224,289.13

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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.