Home / 203,178.04-280,377.39-112,528.60

Finding the Fourth Proportional to 203,178.04, 280,377.39 and 112,528.60

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Solution

The fourth proportional to 203,178.04, 280,377.39 and 112,528.60 is: 155,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,178.04 : 280,377.39 = 112,528.60 : x
  2. Step 2: Convert to fraction form
    203,178.04/280,377.39 = 112,528.60/x
  3. Step 3: Cross multiply
    203,178.04x = 280,377.39 × 112,528.60
  4. Step 4: Simplify right side
    203,178.04x = 31,550,475,168.35
  5. Step 5: Solve for x
    x = 31,550,475,168.35/203,178.04
  6. Step 6: Final answer
    x = 155,284.87

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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.