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Finding the Fourth Proportional to 203,263.66, 280,506.08 and 112,621.04

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Solution

The fourth proportional to 203,263.66, 280,506.08 and 112,621.04 is: 155,418.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,263.66 : 280,506.08 = 112,621.04 : x
  2. Step 2: Convert to fraction form
    203,263.66/280,506.08 = 112,621.04/x
  3. Step 3: Cross multiply
    203,263.66x = 280,506.08 × 112,621.04
  4. Step 4: Simplify right side
    203,263.66x = 31,590,886,455.92
  5. Step 5: Solve for x
    x = 31,590,886,455.92/203,263.66
  6. Step 6: Final answer
    x = 155,418.27

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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.