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Finding the Fourth Proportional to 509,501.80, 764,203.49 and 154,518.90

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Solution

The fourth proportional to 509,501.80, 764,203.49 and 154,518.90 is: 231,763.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,501.80 : 764,203.49 = 154,518.90 : x
  2. Step 2: Convert to fraction form
    509,501.80/764,203.49 = 154,518.90/x
  3. Step 3: Cross multiply
    509,501.80x = 764,203.49 × 154,518.90
  4. Step 4: Simplify right side
    509,501.80x = 118,083,882,650.96
  5. Step 5: Solve for x
    x = 118,083,882,650.96/509,501.80
  6. Step 6: Final answer
    x = 231,763.43

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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.