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Finding the Fourth Proportional to 252,678.69, 348,656.90 and 145,228.64

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Solution

The fourth proportional to 252,678.69, 348,656.90 and 145,228.64 is: 200,392.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,678.69 : 348,656.90 = 145,228.64 : x
  2. Step 2: Convert to fraction form
    252,678.69/348,656.90 = 145,228.64/x
  3. Step 3: Cross multiply
    252,678.69x = 348,656.90 × 145,228.64
  4. Step 4: Simplify right side
    252,678.69x = 50,634,964,944.19
  5. Step 5: Solve for x
    x = 50,634,964,944.19/252,678.69
  6. Step 6: Final answer
    x = 200,392.70

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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.