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Finding the Fourth Proportional to 418,636.35, 577,725.21 and 227,655.36

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Solution

The fourth proportional to 418,636.35, 577,725.21 and 227,655.36 is: 314,168.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,636.35 : 577,725.21 = 227,655.36 : x
  2. Step 2: Convert to fraction form
    418,636.35/577,725.21 = 227,655.36/x
  3. Step 3: Cross multiply
    418,636.35x = 577,725.21 × 227,655.36
  4. Step 4: Simplify right side
    418,636.35x = 131,522,240,663.63
  5. Step 5: Solve for x
    x = 131,522,240,663.63/418,636.35
  6. Step 6: Final answer
    x = 314,168.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.