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Finding the Fourth Proportional to 516,021.84, 773,571.06 and 200,403.72

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Solution

The fourth proportional to 516,021.84, 773,571.06 and 200,403.72 is: 300,426.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,021.84 : 773,571.06 = 200,403.72 : x
  2. Step 2: Convert to fraction form
    516,021.84/773,571.06 = 200,403.72/x
  3. Step 3: Cross multiply
    516,021.84x = 773,571.06 × 200,403.72
  4. Step 4: Simplify right side
    516,021.84x = 155,026,518,108.34
  5. Step 5: Solve for x
    x = 155,026,518,108.34/516,021.84
  6. Step 6: Final answer
    x = 300,426.27

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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.