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Finding the Fourth Proportional to 296,677.68, 445,016.51 and 72,036.60

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Solution

The fourth proportional to 296,677.68, 445,016.51 and 72,036.60 is: 108,054.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,677.68 : 445,016.51 = 72,036.60 : x
  2. Step 2: Convert to fraction form
    296,677.68/445,016.51 = 72,036.60/x
  3. Step 3: Cross multiply
    296,677.68x = 445,016.51 × 72,036.60
  4. Step 4: Simplify right side
    296,677.68x = 32,057,474,835.55
  5. Step 5: Solve for x
    x = 32,057,474,835.55/296,677.68
  6. Step 6: Final answer
    x = 108,054.89

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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.