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Finding the Fourth Proportional to 385,752.50, 578,656.48 and 133,029.34

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Solution

The fourth proportional to 385,752.50, 578,656.48 and 133,029.34 is: 199,553.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,752.50 : 578,656.48 = 133,029.34 : x
  2. Step 2: Convert to fraction form
    385,752.50/578,656.48 = 133,029.34/x
  3. Step 3: Cross multiply
    385,752.50x = 578,656.48 × 133,029.34
  4. Step 4: Simplify right side
    385,752.50x = 76,978,288,465.48
  5. Step 5: Solve for x
    x = 76,978,288,465.48/385,752.50
  6. Step 6: Final answer
    x = 199,553.57

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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.