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Finding the Fourth Proportional to 252,606.50, 348,597 and 139,429.28

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Solution

The fourth proportional to 252,606.50, 348,597 and 139,429.28 is: 192,412.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,606.50 : 348,597 = 139,429.28 : x
  2. Step 2: Convert to fraction form
    252,606.50/348,597 = 139,429.28/x
  3. Step 3: Cross multiply
    252,606.50x = 348,597 × 139,429.28
  4. Step 4: Simplify right side
    252,606.50x = 48,604,628,720.16
  5. Step 5: Solve for x
    x = 48,604,628,720.16/252,606.50
  6. Step 6: Final answer
    x = 192,412.42

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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.