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Finding the Fourth Proportional to 146,230.40, 219,345.60 and 98,991.20

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Solution

The fourth proportional to 146,230.40, 219,345.60 and 98,991.20 is: 148,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,230.40 : 219,345.60 = 98,991.20 : x
  2. Step 2: Convert to fraction form
    146,230.40/219,345.60 = 98,991.20/x
  3. Step 3: Cross multiply
    146,230.40x = 219,345.60 × 98,991.20
  4. Step 4: Simplify right side
    146,230.40x = 21,713,284,158.72
  5. Step 5: Solve for x
    x = 21,713,284,158.72/146,230.40
  6. Step 6: Final answer
    x = 148,486.80

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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.