Home / 309,278.92-426,840.24-173,349.52

Finding the Fourth Proportional to 309,278.92, 426,840.24 and 173,349.52

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Solution

The fourth proportional to 309,278.92, 426,840.24 and 173,349.52 is: 239,242.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,278.92 : 426,840.24 = 173,349.52 : x
  2. Step 2: Convert to fraction form
    309,278.92/426,840.24 = 173,349.52/x
  3. Step 3: Cross multiply
    309,278.92x = 426,840.24 × 173,349.52
  4. Step 4: Simplify right side
    309,278.92x = 73,992,550,720.68
  5. Step 5: Solve for x
    x = 73,992,550,720.68/309,278.92
  6. Step 6: Final answer
    x = 239,242.14

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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.