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Finding the Fourth Proportional to 183,472.40, 275,208.60 and 121,142.90

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Solution

The fourth proportional to 183,472.40, 275,208.60 and 121,142.90 is: 181,714.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,472.40 : 275,208.60 = 121,142.90 : x
  2. Step 2: Convert to fraction form
    183,472.40/275,208.60 = 121,142.90/x
  3. Step 3: Cross multiply
    183,472.40x = 275,208.60 × 121,142.90
  4. Step 4: Simplify right side
    183,472.40x = 33,339,567,908.94
  5. Step 5: Solve for x
    x = 33,339,567,908.94/183,472.40
  6. Step 6: Final answer
    x = 181,714.35

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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.