Home / 300,770.16-451,155.58-90,408.10

Finding the Fourth Proportional to 300,770.16, 451,155.58 and 90,408.10

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Solution

The fourth proportional to 300,770.16, 451,155.58 and 90,408.10 is: 135,612.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,770.16 : 451,155.58 = 90,408.10 : x
  2. Step 2: Convert to fraction form
    300,770.16/451,155.58 = 90,408.10/x
  3. Step 3: Cross multiply
    300,770.16x = 451,155.58 × 90,408.10
  4. Step 4: Simplify right side
    300,770.16x = 40,788,118,792.20
  5. Step 5: Solve for x
    x = 40,788,118,792.20/300,770.16
  6. Step 6: Final answer
    x = 135,612.25

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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.