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Finding the Fourth Proportional to 187,388.96, 280,833.84 and 68,950.72

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Solution

The fourth proportional to 187,388.96, 280,833.84 and 68,950.72 is: 103,334.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,388.96 : 280,833.84 = 68,950.72 : x
  2. Step 2: Convert to fraction form
    187,388.96/280,833.84 = 68,950.72/x
  3. Step 3: Cross multiply
    187,388.96x = 280,833.84 × 68,950.72
  4. Step 4: Simplify right side
    187,388.96x = 19,363,695,468.36
  5. Step 5: Solve for x
    x = 19,363,695,468.36/187,388.96
  6. Step 6: Final answer
    x = 103,334.24

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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.