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Finding the Fourth Proportional to 320,607.82, 442,451.82 and 177,365.40

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Solution

The fourth proportional to 320,607.82, 442,451.82 and 177,365.40 is: 244,771.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,607.82 : 442,451.82 = 177,365.40 : x
  2. Step 2: Convert to fraction form
    320,607.82/442,451.82 = 177,365.40/x
  3. Step 3: Cross multiply
    320,607.82x = 442,451.82 × 177,365.40
  4. Step 4: Simplify right side
    320,607.82x = 78,475,642,043.27
  5. Step 5: Solve for x
    x = 78,475,642,043.27/320,607.82
  6. Step 6: Final answer
    x = 244,771.45

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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.