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Finding the Fourth Proportional to 313,269.32, 432,311.99 and 170,029.40

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Solution

The fourth proportional to 313,269.32, 432,311.99 and 170,029.40 is: 234,640.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,269.32 : 432,311.99 = 170,029.40 : x
  2. Step 2: Convert to fraction form
    313,269.32/432,311.99 = 170,029.40/x
  3. Step 3: Cross multiply
    313,269.32x = 432,311.99 × 170,029.40
  4. Step 4: Simplify right side
    313,269.32x = 73,505,745,260.80
  5. Step 5: Solve for x
    x = 73,505,745,260.80/313,269.32
  6. Step 6: Final answer
    x = 234,640.74

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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.