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Finding the Fourth Proportional to 326,015.93, 488,971.41 and 89,303.29

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Solution

The fourth proportional to 326,015.93, 488,971.41 and 89,303.29 is: 133,940.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,015.93 : 488,971.41 = 89,303.29 : x
  2. Step 2: Convert to fraction form
    326,015.93/488,971.41 = 89,303.29/x
  3. Step 3: Cross multiply
    326,015.93x = 488,971.41 × 89,303.29
  4. Step 4: Simplify right side
    326,015.93x = 43,666,754,071.62
  5. Step 5: Solve for x
    x = 43,666,754,071.62/326,015.93
  6. Step 6: Final answer
    x = 133,940.55

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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.