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Finding the Fourth Proportional to 252,668.62, 348,683.16 and 139,491.46

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Solution

The fourth proportional to 252,668.62, 348,683.16 and 139,491.46 is: 192,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,668.62 : 348,683.16 = 139,491.46 : x
  2. Step 2: Convert to fraction form
    252,668.62/348,683.16 = 139,491.46/x
  3. Step 3: Cross multiply
    252,668.62x = 348,683.16 × 139,491.46
  4. Step 4: Simplify right side
    252,668.62x = 48,638,323,065.81
  5. Step 5: Solve for x
    x = 48,638,323,065.81/252,668.62
  6. Step 6: Final answer
    x = 192,498.47

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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.