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Finding the Fourth Proportional to 355,968.93, 491,139.83 and 202,951.34

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Solution

The fourth proportional to 355,968.93, 491,139.83 and 202,951.34 is: 280,017.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,968.93 : 491,139.83 = 202,951.34 : x
  2. Step 2: Convert to fraction form
    355,968.93/491,139.83 = 202,951.34/x
  3. Step 3: Cross multiply
    355,968.93x = 491,139.83 × 202,951.34
  4. Step 4: Simplify right side
    355,968.93x = 99,677,483,155.42
  5. Step 5: Solve for x
    x = 99,677,483,155.42/355,968.93
  6. Step 6: Final answer
    x = 280,017.37

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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.