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Finding the Fourth Proportional to 207,249.34, 310,903.20 and 72,293.72

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Solution

The fourth proportional to 207,249.34, 310,903.20 and 72,293.72 is: 108,450.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,249.34 : 310,903.20 = 72,293.72 : x
  2. Step 2: Convert to fraction form
    207,249.34/310,903.20 = 72,293.72/x
  3. Step 3: Cross multiply
    207,249.34x = 310,903.20 × 72,293.72
  4. Step 4: Simplify right side
    207,249.34x = 22,476,349,956.63
  5. Step 5: Solve for x
    x = 22,476,349,956.63/207,249.34
  6. Step 6: Final answer
    x = 108,450.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.