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Finding the Fourth Proportional to 520,149.92, 780,450.26 and 183,431.16

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Solution

The fourth proportional to 520,149.92, 780,450.26 and 183,431.16 is: 275,226.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,149.92 : 780,450.26 = 183,431.16 : x
  2. Step 2: Convert to fraction form
    520,149.92/780,450.26 = 183,431.16/x
  3. Step 3: Cross multiply
    520,149.92x = 780,450.26 × 183,431.16
  4. Step 4: Simplify right side
    520,149.92x = 143,158,895,596.95
  5. Step 5: Solve for x
    x = 143,158,895,596.95/520,149.92
  6. Step 6: Final answer
    x = 275,226.22

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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.