Home / 320,896.12-442,819.79-175,674.10

Finding the Fourth Proportional to 320,896.12, 442,819.79 and 175,674.10

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Solution

The fourth proportional to 320,896.12, 442,819.79 and 175,674.10 is: 242,421.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,896.12 : 442,819.79 = 175,674.10 : x
  2. Step 2: Convert to fraction form
    320,896.12/442,819.79 = 175,674.10/x
  3. Step 3: Cross multiply
    320,896.12x = 442,819.79 × 175,674.10
  4. Step 4: Simplify right side
    320,896.12x = 77,791,968,070.44
  5. Step 5: Solve for x
    x = 77,791,968,070.44/320,896.12
  6. Step 6: Final answer
    x = 242,421.03

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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.