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Finding the Fourth Proportional to 509,669.84, 764,507.21 and 154,686.94

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Solution

The fourth proportional to 509,669.84, 764,507.21 and 154,686.94 is: 232,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,669.84 : 764,507.21 = 154,686.94 : x
  2. Step 2: Convert to fraction form
    509,669.84/764,507.21 = 154,686.94/x
  3. Step 3: Cross multiply
    509,669.84x = 764,507.21 × 154,686.94
  4. Step 4: Simplify right side
    509,669.84x = 118,259,278,238.14
  5. Step 5: Solve for x
    x = 118,259,278,238.14/509,669.84
  6. Step 6: Final answer
    x = 232,031.15

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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.