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Finding the Fourth Proportional to 253,354, 379,898.16 and 103,510.48

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Solution

The fourth proportional to 253,354, 379,898.16 and 103,510.48 is: 155,211.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,354 : 379,898.16 = 103,510.48 : x
  2. Step 2: Convert to fraction form
    253,354/379,898.16 = 103,510.48/x
  3. Step 3: Cross multiply
    253,354x = 379,898.16 × 103,510.48
  4. Step 4: Simplify right side
    253,354x = 39,323,440,892.72
  5. Step 5: Solve for x
    x = 39,323,440,892.72/253,354
  6. Step 6: Final answer
    x = 155,211.45

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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.