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Finding the Fourth Proportional to 255,920.64, 383,926.32 and 123,041.76

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Solution

The fourth proportional to 255,920.64, 383,926.32 and 123,041.76 is: 184,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,920.64 : 383,926.32 = 123,041.76 : x
  2. Step 2: Convert to fraction form
    255,920.64/383,926.32 = 123,041.76/x
  3. Step 3: Cross multiply
    255,920.64x = 383,926.32 × 123,041.76
  4. Step 4: Simplify right side
    255,920.64x = 47,238,970,123.12
  5. Step 5: Solve for x
    x = 47,238,970,123.12/255,920.64
  6. Step 6: Final answer
    x = 184,584.45

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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.