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Finding the Fourth Proportional to 187,262.31, 280,762.25 and 68,918.27

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Solution

The fourth proportional to 187,262.31, 280,762.25 and 68,918.27 is: 103,329.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,262.31 : 280,762.25 = 68,918.27 : x
  2. Step 2: Convert to fraction form
    187,262.31/280,762.25 = 68,918.27/x
  3. Step 3: Cross multiply
    187,262.31x = 280,762.25 × 68,918.27
  4. Step 4: Simplify right side
    187,262.31x = 19,349,648,908.62
  5. Step 5: Solve for x
    x = 19,349,648,908.62/187,262.31
  6. Step 6: Final answer
    x = 103,329.12

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1.5x scale

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.