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Finding the Fourth Proportional to 510,929.87, 766,485 and 211,242.56

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Solution

The fourth proportional to 510,929.87, 766,485 and 211,242.56 is: 316,901.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,929.87 : 766,485 = 211,242.56 : x
  2. Step 2: Convert to fraction form
    510,929.87/766,485 = 211,242.56/x
  3. Step 3: Cross multiply
    510,929.87x = 766,485 × 211,242.56
  4. Step 4: Simplify right side
    510,929.87x = 161,914,249,769.18
  5. Step 5: Solve for x
    x = 161,914,249,769.18/510,929.87
  6. Step 6: Final answer
    x = 316,901.13

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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.