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Finding the Fourth Proportional to 252,938.74, 349,052.98 and 139,759.06

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Solution

The fourth proportional to 252,938.74, 349,052.98 and 139,759.06 is: 192,866.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,938.74 : 349,052.98 = 139,759.06 : x
  2. Step 2: Convert to fraction form
    252,938.74/349,052.98 = 139,759.06/x
  3. Step 3: Cross multiply
    252,938.74x = 349,052.98 × 139,759.06
  4. Step 4: Simplify right side
    252,938.74x = 48,783,314,280.34
  5. Step 5: Solve for x
    x = 48,783,314,280.34/252,938.74
  6. Step 6: Final answer
    x = 192,866.13

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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.