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Finding the Fourth Proportional to 303,659.70, 455,489.55 and 93,270.30

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Solution

The fourth proportional to 303,659.70, 455,489.55 and 93,270.30 is: 139,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,659.70 : 455,489.55 = 93,270.30 : x
  2. Step 2: Convert to fraction form
    303,659.70/455,489.55 = 93,270.30/x
  3. Step 3: Cross multiply
    303,659.70x = 455,489.55 × 93,270.30
  4. Step 4: Simplify right side
    303,659.70x = 42,483,646,975.37
  5. Step 5: Solve for x
    x = 42,483,646,975.37/303,659.70
  6. Step 6: Final answer
    x = 139,905.45

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Similar ratio
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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.