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Finding the Fourth Proportional to 256,848.60, 385,710.30 and 182,490.60

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Solution

The fourth proportional to 256,848.60, 385,710.30 and 182,490.60 is: 274,046.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,848.60 : 385,710.30 = 182,490.60 : x
  2. Step 2: Convert to fraction form
    256,848.60/385,710.30 = 182,490.60/x
  3. Step 3: Cross multiply
    256,848.60x = 385,710.30 × 182,490.60
  4. Step 4: Simplify right side
    256,848.60x = 70,388,504,073.18
  5. Step 5: Solve for x
    x = 70,388,504,073.18/256,848.60
  6. Step 6: Final answer
    x = 274,046.67

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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.