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Finding the Fourth Proportional to 146,776.70, 220,165.05 and 145,855.10

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Solution

The fourth proportional to 146,776.70, 220,165.05 and 145,855.10 is: 218,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,776.70 : 220,165.05 = 145,855.10 : x
  2. Step 2: Convert to fraction form
    146,776.70/220,165.05 = 145,855.10/x
  3. Step 3: Cross multiply
    146,776.70x = 220,165.05 × 145,855.10
  4. Step 4: Simplify right side
    146,776.70x = 32,112,195,384.26
  5. Step 5: Solve for x
    x = 32,112,195,384.26/146,776.70
  6. Step 6: Final answer
    x = 218,782.65

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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.