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Finding the Fourth Proportional to 203,489.02, 280,829.22 and 112,853.65

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Solution

The fourth proportional to 203,489.02, 280,829.22 and 112,853.65 is: 155,746.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,489.02 : 280,829.22 = 112,853.65 : x
  2. Step 2: Convert to fraction form
    203,489.02/280,829.22 = 112,853.65/x
  3. Step 3: Cross multiply
    203,489.02x = 280,829.22 × 112,853.65
  4. Step 4: Simplify right side
    203,489.02x = 31,692,602,503.65
  5. Step 5: Solve for x
    x = 31,692,602,503.65/203,489.02
  6. Step 6: Final answer
    x = 155,746.01

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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.