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Finding the Fourth Proportional to 182,012.40, 272,435.40 and 142,354.80

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Solution

The fourth proportional to 182,012.40, 272,435.40 and 142,354.80 is: 213,076.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,012.40 : 272,435.40 = 142,354.80 : x
  2. Step 2: Convert to fraction form
    182,012.40/272,435.40 = 142,354.80/x
  3. Step 3: Cross multiply
    182,012.40x = 272,435.40 × 142,354.80
  4. Step 4: Simplify right side
    182,012.40x = 38,782,486,879.92
  5. Step 5: Solve for x
    x = 38,782,486,879.92/182,012.40
  6. Step 6: Final answer
    x = 213,076.07

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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.