Home / 318,416.80-477,625.20-306,169.60

Finding the Fourth Proportional to 318,416.80, 477,625.20 and 306,169.60

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Solution

The fourth proportional to 318,416.80, 477,625.20 and 306,169.60 is: 459,254.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,416.80 : 477,625.20 = 306,169.60 : x
  2. Step 2: Convert to fraction form
    318,416.80/477,625.20 = 306,169.60/x
  3. Step 3: Cross multiply
    318,416.80x = 477,625.20 × 306,169.60
  4. Step 4: Simplify right side
    318,416.80x = 146,234,316,433.92
  5. Step 5: Solve for x
    x = 146,234,316,433.92/318,416.80
  6. Step 6: Final answer
    x = 459,254.40

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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.