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Finding the Fourth Proportional to 298,290.72, 411,642.56 and 170,973.76

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Solution

The fourth proportional to 298,290.72, 411,642.56 and 170,973.76 is: 235,944.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,290.72 : 411,642.56 = 170,973.76 : x
  2. Step 2: Convert to fraction form
    298,290.72/411,642.56 = 170,973.76/x
  3. Step 3: Cross multiply
    298,290.72x = 411,642.56 × 170,973.76
  4. Step 4: Simplify right side
    298,290.72x = 70,380,076,259.23
  5. Step 5: Solve for x
    x = 70,380,076,259.23/298,290.72
  6. Step 6: Final answer
    x = 235,944.57

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