Home / 309,002.40-463,503.60-131,515.20

Finding the Fourth Proportional to 309,002.40, 463,503.60 and 131,515.20

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Solution

The fourth proportional to 309,002.40, 463,503.60 and 131,515.20 is: 197,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,002.40 : 463,503.60 = 131,515.20 : x
  2. Step 2: Convert to fraction form
    309,002.40/463,503.60 = 131,515.20/x
  3. Step 3: Cross multiply
    309,002.40x = 463,503.60 × 131,515.20
  4. Step 4: Simplify right side
    309,002.40x = 60,957,768,654.72
  5. Step 5: Solve for x
    x = 60,957,768,654.72/309,002.40
  6. Step 6: Final answer
    x = 197,272.80

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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.