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Finding the Fourth Proportional to 252,509.88, 348,464.82 and 139,332.60

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Solution

The fourth proportional to 252,509.88, 348,464.82 and 139,332.60 is: 192,279.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,509.88 : 348,464.82 = 139,332.60 : x
  2. Step 2: Convert to fraction form
    252,509.88/348,464.82 = 139,332.60/x
  3. Step 3: Cross multiply
    252,509.88x = 348,464.82 × 139,332.60
  4. Step 4: Simplify right side
    252,509.88x = 48,552,509,379.13
  5. Step 5: Solve for x
    x = 48,552,509,379.13/252,509.88
  6. Step 6: Final answer
    x = 192,279.64

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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.