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Finding the Fourth Proportional to 203,417.57, 280,723.08 and 112,768.13

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Solution

The fourth proportional to 203,417.57, 280,723.08 and 112,768.13 is: 155,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,417.57 : 280,723.08 = 112,768.13 : x
  2. Step 2: Convert to fraction form
    203,417.57/280,723.08 = 112,768.13/x
  3. Step 3: Cross multiply
    203,417.57x = 280,723.08 × 112,768.13
  4. Step 4: Simplify right side
    203,417.57x = 31,656,616,779.44
  5. Step 5: Solve for x
    x = 31,656,616,779.44/203,417.57
  6. Step 6: Final answer
    x = 155,623.81

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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.