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Finding the Fourth Proportional to 255,392.72, 352,457.87 and 140,671.34

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Solution

The fourth proportional to 255,392.72, 352,457.87 and 140,671.34 is: 194,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,392.72 : 352,457.87 = 140,671.34 : x
  2. Step 2: Convert to fraction form
    255,392.72/352,457.87 = 140,671.34/x
  3. Step 3: Cross multiply
    255,392.72x = 352,457.87 × 140,671.34
  4. Step 4: Simplify right side
    255,392.72x = 49,580,718,400.80
  5. Step 5: Solve for x
    x = 49,580,718,400.80/255,392.72
  6. Step 6: Final answer
    x = 194,135.21

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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.