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Finding the Fourth Proportional to 200,985.30, 301,510.76 and 67,873.55

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Solution

The fourth proportional to 200,985.30, 301,510.76 and 67,873.55 is: 101,821.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,985.30 : 301,510.76 = 67,873.55 : x
  2. Step 2: Convert to fraction form
    200,985.30/301,510.76 = 67,873.55/x
  3. Step 3: Cross multiply
    200,985.30x = 301,510.76 × 67,873.55
  4. Step 4: Simplify right side
    200,985.30x = 20,464,603,797.48
  5. Step 5: Solve for x
    x = 20,464,603,797.48/200,985.30
  6. Step 6: Final answer
    x = 101,821.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.