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Finding the Fourth Proportional to 203,463.63, 280,768.37 and 112,814.19

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Solution

The fourth proportional to 203,463.63, 280,768.37 and 112,814.19 is: 155,677.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,463.63 : 280,768.37 = 112,814.19 : x
  2. Step 2: Convert to fraction form
    203,463.63/280,768.37 = 112,814.19/x
  3. Step 3: Cross multiply
    203,463.63x = 280,768.37 × 112,814.19
  4. Step 4: Simplify right side
    203,463.63x = 31,674,655,675.10
  5. Step 5: Solve for x
    x = 31,674,655,675.10/203,463.63
  6. Step 6: Final answer
    x = 155,677.24

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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.