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Finding the Fourth Proportional to 301,720.45, 452,580.65 and 77,081.37

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Solution

The fourth proportional to 301,720.45, 452,580.65 and 77,081.37 is: 115,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,720.45 : 452,580.65 = 77,081.37 : x
  2. Step 2: Convert to fraction form
    301,720.45/452,580.65 = 77,081.37/x
  3. Step 3: Cross multiply
    301,720.45x = 452,580.65 × 77,081.37
  4. Step 4: Simplify right side
    301,720.45x = 34,885,536,537.49
  5. Step 5: Solve for x
    x = 34,885,536,537.49/301,720.45
  6. Step 6: Final answer
    x = 115,622.05

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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.