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Finding the Fourth Proportional to 235,455.82, 324,926.77 and 128,025.89

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Solution

The fourth proportional to 235,455.82, 324,926.77 and 128,025.89 is: 176,674.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,455.82 : 324,926.77 = 128,025.89 : x
  2. Step 2: Convert to fraction form
    235,455.82/324,926.77 = 128,025.89/x
  3. Step 3: Cross multiply
    235,455.82x = 324,926.77 × 128,025.89
  4. Step 4: Simplify right side
    235,455.82x = 41,599,038,261.79
  5. Step 5: Solve for x
    x = 41,599,038,261.79/235,455.82
  6. Step 6: Final answer
    x = 176,674.50

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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.