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Finding the Fourth Proportional to 189,888.63, 262,072.22 and 109,314.15

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Solution

The fourth proportional to 189,888.63, 262,072.22 and 109,314.15 is: 150,868.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,888.63 : 262,072.22 = 109,314.15 : x
  2. Step 2: Convert to fraction form
    189,888.63/262,072.22 = 109,314.15/x
  3. Step 3: Cross multiply
    189,888.63x = 262,072.22 × 109,314.15
  4. Step 4: Simplify right side
    189,888.63x = 28,648,201,421.34
  5. Step 5: Solve for x
    x = 28,648,201,421.34/189,888.63
  6. Step 6: Final answer
    x = 150,868.44

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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.