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Finding the Fourth Proportional to 372,409.04, 558,281.32 and 309,743.26

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Solution

The fourth proportional to 372,409.04, 558,281.32 and 309,743.26 is: 464,338.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,409.04 : 558,281.32 = 309,743.26 : x
  2. Step 2: Convert to fraction form
    372,409.04/558,281.32 = 309,743.26/x
  3. Step 3: Cross multiply
    372,409.04x = 558,281.32 × 309,743.26
  4. Step 4: Simplify right side
    372,409.04x = 172,923,876,053.90
  5. Step 5: Solve for x
    x = 172,923,876,053.90/372,409.04
  6. Step 6: Final answer
    x = 464,338.56

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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.