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Finding the Fourth Proportional to 320,279.00, 441,985.14 and 177,039

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Solution

The fourth proportional to 320,279.00, 441,985.14 and 177,039 is: 244,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,279.00 : 441,985.14 = 177,039 : x
  2. Step 2: Convert to fraction form
    320,279.00/441,985.14 = 177,039/x
  3. Step 3: Cross multiply
    320,279.00x = 441,985.14 × 177,039
  4. Step 4: Simplify right side
    320,279.00x = 78,248,607,200.46
  5. Step 5: Solve for x
    x = 78,248,607,200.46/320,279.00
  6. Step 6: Final answer
    x = 244,313.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.