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Finding the Fourth Proportional to 520,166.33, 780,249.51 and 146,189.33

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Solution

The fourth proportional to 520,166.33, 780,249.51 and 146,189.33 is: 219,283.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,166.33 : 780,249.51 = 146,189.33 : x
  2. Step 2: Convert to fraction form
    520,166.33/780,249.51 = 146,189.33/x
  3. Step 3: Cross multiply
    520,166.33x = 780,249.51 × 146,189.33
  4. Step 4: Simplify right side
    520,166.33x = 114,064,149,198.48
  5. Step 5: Solve for x
    x = 114,064,149,198.48/520,166.33
  6. Step 6: Final answer
    x = 219,283.99

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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.