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Finding the Fourth Proportional to 296,615.76, 409,001.76 and 189,015.36

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Solution

The fourth proportional to 296,615.76, 409,001.76 and 189,015.36 is: 260,632.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,615.76 : 409,001.76 = 189,015.36 : x
  2. Step 2: Convert to fraction form
    296,615.76/409,001.76 = 189,015.36/x
  3. Step 3: Cross multiply
    296,615.76x = 409,001.76 × 189,015.36
  4. Step 4: Simplify right side
    296,615.76x = 77,307,614,907.03
  5. Step 5: Solve for x
    x = 77,307,614,907.03/296,615.76
  6. Step 6: Final answer
    x = 260,632.19

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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.