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Finding the Fourth Proportional to 187,263.88, 258,424.15 and 102,380.94

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Solution

The fourth proportional to 187,263.88, 258,424.15 and 102,380.94 is: 141,285.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,263.88 : 258,424.15 = 102,380.94 : x
  2. Step 2: Convert to fraction form
    187,263.88/258,424.15 = 102,380.94/x
  3. Step 3: Cross multiply
    187,263.88x = 258,424.15 × 102,380.94
  4. Step 4: Simplify right side
    187,263.88x = 26,457,707,395.70
  5. Step 5: Solve for x
    x = 26,457,707,395.70/187,263.88
  6. Step 6: Final answer
    x = 141,285.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.