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Finding the Fourth Proportional to 540,707.25, 811,107 and 141,347.37

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Solution

The fourth proportional to 540,707.25, 811,107 and 141,347.37 is: 212,033.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,707.25 : 811,107 = 141,347.37 : x
  2. Step 2: Convert to fraction form
    540,707.25/811,107 = 141,347.37/x
  3. Step 3: Cross multiply
    540,707.25x = 811,107 × 141,347.37
  4. Step 4: Simplify right side
    540,707.25x = 114,647,841,238.59
  5. Step 5: Solve for x
    x = 114,647,841,238.59/540,707.25
  6. Step 6: Final answer
    x = 212,033.11

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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.