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Finding the Fourth Proportional to 103,341.90, 155,012.85 and 33,228.30

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Solution

The fourth proportional to 103,341.90, 155,012.85 and 33,228.30 is: 49,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,341.90 : 155,012.85 = 33,228.30 : x
  2. Step 2: Convert to fraction form
    103,341.90/155,012.85 = 33,228.30/x
  3. Step 3: Cross multiply
    103,341.90x = 155,012.85 × 33,228.30
  4. Step 4: Simplify right side
    103,341.90x = 5,150,813,483.66
  5. Step 5: Solve for x
    x = 5,150,813,483.66/103,341.90
  6. Step 6: Final answer
    x = 49,842.45

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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.