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Finding the Fourth Proportional to 540,329.80, 809,999.10 and 207,655.24

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Solution

The fourth proportional to 540,329.80, 809,999.10 and 207,655.24 is: 311,292.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,329.80 : 809,999.10 = 207,655.24 : x
  2. Step 2: Convert to fraction form
    540,329.80/809,999.10 = 207,655.24/x
  3. Step 3: Cross multiply
    540,329.80x = 809,999.10 × 207,655.24
  4. Step 4: Simplify right side
    540,329.80x = 168,200,557,510.28
  5. Step 5: Solve for x
    x = 168,200,557,510.28/540,329.80
  6. Step 6: Final answer
    x = 311,292.39

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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.