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Finding the Fourth Proportional to 355,265.06, 490,265.28 and 202,303.30

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Solution

The fourth proportional to 355,265.06, 490,265.28 and 202,303.30 is: 279,178.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,265.06 : 490,265.28 = 202,303.30 : x
  2. Step 2: Convert to fraction form
    355,265.06/490,265.28 = 202,303.30/x
  3. Step 3: Cross multiply
    355,265.06x = 490,265.28 × 202,303.30
  4. Step 4: Simplify right side
    355,265.06x = 99,182,284,019.42
  5. Step 5: Solve for x
    x = 99,182,284,019.42/355,265.06
  6. Step 6: Final answer
    x = 279,178.27

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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.