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Finding the Fourth Proportional to 146,530.80, 219,796.20 and 127,285.20

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Solution

The fourth proportional to 146,530.80, 219,796.20 and 127,285.20 is: 190,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,530.80 : 219,796.20 = 127,285.20 : x
  2. Step 2: Convert to fraction form
    146,530.80/219,796.20 = 127,285.20/x
  3. Step 3: Cross multiply
    146,530.80x = 219,796.20 × 127,285.20
  4. Step 4: Simplify right side
    146,530.80x = 27,976,803,276.24
  5. Step 5: Solve for x
    x = 27,976,803,276.24/146,530.80
  6. Step 6: Final answer
    x = 190,927.80

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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.