Home / 300,835.08-415,139.58-179,904.78

Finding the Fourth Proportional to 300,835.08, 415,139.58 and 179,904.78

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Solution

The fourth proportional to 300,835.08, 415,139.58 and 179,904.78 is: 248,260.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,835.08 : 415,139.58 = 179,904.78 : x
  2. Step 2: Convert to fraction form
    300,835.08/415,139.58 = 179,904.78/x
  3. Step 3: Cross multiply
    300,835.08x = 415,139.58 × 179,904.78
  4. Step 4: Simplify right side
    300,835.08x = 74,685,594,809.19
  5. Step 5: Solve for x
    x = 74,685,594,809.19/300,835.08
  6. Step 6: Final answer
    x = 248,260.92

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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.