Home / 309,451.12-464,183.16-99,088.45

Finding the Fourth Proportional to 309,451.12, 464,183.16 and 99,088.45

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Solution

The fourth proportional to 309,451.12, 464,183.16 and 99,088.45 is: 148,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,451.12 : 464,183.16 = 99,088.45 : x
  2. Step 2: Convert to fraction form
    309,451.12/464,183.16 = 99,088.45/x
  3. Step 3: Cross multiply
    309,451.12x = 464,183.16 × 99,088.45
  4. Step 4: Simplify right side
    309,451.12x = 45,995,189,840.50
  5. Step 5: Solve for x
    x = 45,995,189,840.50/309,451.12
  6. Step 6: Final answer
    x = 148,634.75

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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.