Home / 315,836.80-435,880.68-179,913.28

Finding the Fourth Proportional to 315,836.80, 435,880.68 and 179,913.28

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Solution

The fourth proportional to 315,836.80, 435,880.68 and 179,913.28 is: 248,295.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,836.80 : 435,880.68 = 179,913.28 : x
  2. Step 2: Convert to fraction form
    315,836.80/435,880.68 = 179,913.28/x
  3. Step 3: Cross multiply
    315,836.80x = 435,880.68 × 179,913.28
  4. Step 4: Simplify right side
    315,836.80x = 78,420,722,827.43
  5. Step 5: Solve for x
    x = 78,420,722,827.43/315,836.80
  6. Step 6: Final answer
    x = 248,295.08

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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.