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Finding the Fourth Proportional to 355,140.59, 490,085.86 and 193,996.36

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Solution

The fourth proportional to 355,140.59, 490,085.86 and 193,996.36 is: 267,710.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,140.59 : 490,085.86 = 193,996.36 : x
  2. Step 2: Convert to fraction form
    355,140.59/490,085.86 = 193,996.36/x
  3. Step 3: Cross multiply
    355,140.59x = 490,085.86 × 193,996.36
  4. Step 4: Simplify right side
    355,140.59x = 95,074,869,507.06
  5. Step 5: Solve for x
    x = 95,074,869,507.06/355,140.59
  6. Step 6: Final answer
    x = 267,710.51

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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.