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Finding the Fourth Proportional to 313,295.78, 432,336.60 and 170,052.80

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Solution

The fourth proportional to 313,295.78, 432,336.60 and 170,052.80 is: 234,666.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,295.78 : 432,336.60 = 170,052.80 : x
  2. Step 2: Convert to fraction form
    313,295.78/432,336.60 = 170,052.80/x
  3. Step 3: Cross multiply
    313,295.78x = 432,336.60 × 170,052.80
  4. Step 4: Simplify right side
    313,295.78x = 73,520,049,372.48
  5. Step 5: Solve for x
    x = 73,520,049,372.48/313,295.78
  6. Step 6: Final answer
    x = 234,666.58

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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.