Home / 317,167.12-438,234.60-305,814.16

Finding the Fourth Proportional to 317,167.12, 438,234.60 and 305,814.16

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Solution

The fourth proportional to 317,167.12, 438,234.60 and 305,814.16 is: 422,548.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,167.12 : 438,234.60 = 305,814.16 : x
  2. Step 2: Convert to fraction form
    317,167.12/438,234.60 = 305,814.16/x
  3. Step 3: Cross multiply
    317,167.12x = 438,234.60 × 305,814.16
  4. Step 4: Simplify right side
    317,167.12x = 134,018,346,081.94
  5. Step 5: Solve for x
    x = 134,018,346,081.94/317,167.12
  6. Step 6: Final answer
    x = 422,548.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.