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Finding the Fourth Proportional to 318,868, 440,037.84 and 184,809.76

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Solution

The fourth proportional to 318,868, 440,037.84 and 184,809.76 is: 255,037.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,868 : 440,037.84 = 184,809.76 : x
  2. Step 2: Convert to fraction form
    318,868/440,037.84 = 184,809.76/x
  3. Step 3: Cross multiply
    318,868x = 440,037.84 × 184,809.76
  4. Step 4: Simplify right side
    318,868x = 81,323,287,601.32
  5. Step 5: Solve for x
    x = 81,323,287,601.32/318,868
  6. Step 6: Final answer
    x = 255,037.47

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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.