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Finding the Fourth Proportional to 380,955.60, 571,676.40 and 181,501.20

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Solution

The fourth proportional to 380,955.60, 571,676.40 and 181,501.20 is: 272,367.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,955.60 : 571,676.40 = 181,501.20 : x
  2. Step 2: Convert to fraction form
    380,955.60/571,676.40 = 181,501.20/x
  3. Step 3: Cross multiply
    380,955.60x = 571,676.40 × 181,501.20
  4. Step 4: Simplify right side
    380,955.60x = 103,759,952,611.68
  5. Step 5: Solve for x
    x = 103,759,952,611.68/380,955.60
  6. Step 6: Final answer
    x = 272,367.57

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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.