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Finding the Fourth Proportional to 313,489.64, 432,611.60 and 170,250.60

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Solution

The fourth proportional to 313,489.64, 432,611.60 and 170,250.60 is: 234,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,489.64 : 432,611.60 = 170,250.60 : x
  2. Step 2: Convert to fraction form
    313,489.64/432,611.60 = 170,250.60/x
  3. Step 3: Cross multiply
    313,489.64x = 432,611.60 × 170,250.60
  4. Step 4: Simplify right side
    313,489.64x = 73,652,384,466.96
  5. Step 5: Solve for x
    x = 73,652,384,466.96/313,489.64
  6. Step 6: Final answer
    x = 234,943.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.