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Finding the Fourth Proportional to 333,977.76, 500,967.01 and 81,258.25

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Solution

The fourth proportional to 333,977.76, 500,967.01 and 81,258.25 is: 121,887.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,977.76 : 500,967.01 = 81,258.25 : x
  2. Step 2: Convert to fraction form
    333,977.76/500,967.01 = 81,258.25/x
  3. Step 3: Cross multiply
    333,977.76x = 500,967.01 × 81,258.25
  4. Step 4: Simplify right side
    333,977.76x = 40,707,701,084.77
  5. Step 5: Solve for x
    x = 40,707,701,084.77/333,977.76
  6. Step 6: Final answer
    x = 121,887.46

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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.