Home / 315,972.63-435,935.72-179,910.32

Finding the Fourth Proportional to 315,972.63, 435,935.72 and 179,910.32

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Solution

The fourth proportional to 315,972.63, 435,935.72 and 179,910.32 is: 248,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,972.63 : 435,935.72 = 179,910.32 : x
  2. Step 2: Convert to fraction form
    315,972.63/435,935.72 = 179,910.32/x
  3. Step 3: Cross multiply
    315,972.63x = 435,935.72 × 179,910.32
  4. Step 4: Simplify right side
    315,972.63x = 78,429,333,154.73
  5. Step 5: Solve for x
    x = 78,429,333,154.73/315,972.63
  6. Step 6: Final answer
    x = 248,215.59

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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.