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Finding the Fourth Proportional to 146,491.80, 219,810.60 and 57,748.20

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Solution

The fourth proportional to 146,491.80, 219,810.60 and 57,748.20 is: 86,651.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,491.80 : 219,810.60 = 57,748.20 : x
  2. Step 2: Convert to fraction form
    146,491.80/219,810.60 = 57,748.20/x
  3. Step 3: Cross multiply
    146,491.80x = 219,810.60 × 57,748.20
  4. Step 4: Simplify right side
    146,491.80x = 12,693,666,490.92
  5. Step 5: Solve for x
    x = 12,693,666,490.92/146,491.80
  6. Step 6: Final answer
    x = 86,651.04

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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.