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Finding the Fourth Proportional to 508,726, 763,103.58 and 134,749

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Solution

The fourth proportional to 508,726, 763,103.58 and 134,749 is: 202,127.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,726 : 763,103.58 = 134,749 : x
  2. Step 2: Convert to fraction form
    508,726/763,103.58 = 134,749/x
  3. Step 3: Cross multiply
    508,726x = 763,103.58 × 134,749
  4. Step 4: Simplify right side
    508,726x = 102,827,444,301.42
  5. Step 5: Solve for x
    x = 102,827,444,301.42/508,726
  6. Step 6: Final answer
    x = 202,127.36

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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.