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Finding the Fourth Proportional to 201,992.90, 302,730.15 and 155,012.90

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Solution

The fourth proportional to 201,992.90, 302,730.15 and 155,012.90 is: 232,320.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,992.90 : 302,730.15 = 155,012.90 : x
  2. Step 2: Convert to fraction form
    201,992.90/302,730.15 = 155,012.90/x
  3. Step 3: Cross multiply
    201,992.90x = 302,730.15 × 155,012.90
  4. Step 4: Simplify right side
    201,992.90x = 46,927,078,468.94
  5. Step 5: Solve for x
    x = 46,927,078,468.94/201,992.90
  6. Step 6: Final answer
    x = 232,320.44

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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.