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Finding the Fourth Proportional to 253,007.33, 379,510.85 and 66,018.83

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Solution

The fourth proportional to 253,007.33, 379,510.85 and 66,018.83 is: 99,028.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,007.33 : 379,510.85 = 66,018.83 : x
  2. Step 2: Convert to fraction form
    253,007.33/379,510.85 = 66,018.83/x
  3. Step 3: Cross multiply
    253,007.33x = 379,510.85 × 66,018.83
  4. Step 4: Simplify right side
    253,007.33x = 25,054,860,061.66
  5. Step 5: Solve for x
    x = 25,054,860,061.66/253,007.33
  6. Step 6: Final answer
    x = 99,028.20

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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.