Home / 203,239.02-280,487.04-112,623.36

Finding the Fourth Proportional to 203,239.02, 280,487.04 and 112,623.36

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Solution

The fourth proportional to 203,239.02, 280,487.04 and 112,623.36 is: 155,429.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,239.02 : 280,487.04 = 112,623.36 : x
  2. Step 2: Convert to fraction form
    203,239.02/280,487.04 = 112,623.36/x
  3. Step 3: Cross multiply
    203,239.02x = 280,487.04 × 112,623.36
  4. Step 4: Simplify right side
    203,239.02x = 31,589,392,881.25
  5. Step 5: Solve for x
    x = 31,589,392,881.25/203,239.02
  6. Step 6: Final answer
    x = 155,429.76

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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.