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Finding the Fourth Proportional to 259,119.84, 388,495.62 and 99,060.82

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Solution

The fourth proportional to 259,119.84, 388,495.62 and 99,060.82 is: 148,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,119.84 : 388,495.62 = 99,060.82 : x
  2. Step 2: Convert to fraction form
    259,119.84/388,495.62 = 99,060.82/x
  3. Step 3: Cross multiply
    259,119.84x = 388,495.62 × 99,060.82
  4. Step 4: Simplify right side
    259,119.84x = 38,484,694,683.61
  5. Step 5: Solve for x
    x = 38,484,694,683.61/259,119.84
  6. Step 6: Final answer
    x = 148,520.83

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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.