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Finding the Fourth Proportional to 201,724.60, 302,586.90 and 53,980.60

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Solution

The fourth proportional to 201,724.60, 302,586.90 and 53,980.60 is: 80,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,724.60 : 302,586.90 = 53,980.60 : x
  2. Step 2: Convert to fraction form
    201,724.60/302,586.90 = 53,980.60/x
  3. Step 3: Cross multiply
    201,724.60x = 302,586.90 × 53,980.60
  4. Step 4: Simplify right side
    201,724.60x = 16,333,822,414.14
  5. Step 5: Solve for x
    x = 16,333,822,414.14/201,724.60
  6. Step 6: Final answer
    x = 80,970.90

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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.