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Finding the Fourth Proportional to 508,841.16, 763,448.84 and 209,241.60

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Solution

The fourth proportional to 508,841.16, 763,448.84 and 209,241.60 is: 313,939.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,841.16 : 763,448.84 = 209,241.60 : x
  2. Step 2: Convert to fraction form
    508,841.16/763,448.84 = 209,241.60/x
  3. Step 3: Cross multiply
    508,841.16x = 763,448.84 × 209,241.60
  4. Step 4: Simplify right side
    508,841.16x = 159,745,256,799.74
  5. Step 5: Solve for x
    x = 159,745,256,799.74/508,841.16
  6. Step 6: Final answer
    x = 313,939.34

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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.