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Finding the Fourth Proportional to 315,188.60, 434,951.65 and 171,948.60

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Solution

The fourth proportional to 315,188.60, 434,951.65 and 171,948.60 is: 237,284.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,188.60 : 434,951.65 = 171,948.60 : x
  2. Step 2: Convert to fraction form
    315,188.60/434,951.65 = 171,948.60/x
  3. Step 3: Cross multiply
    315,188.60x = 434,951.65 × 171,948.60
  4. Step 4: Simplify right side
    315,188.60x = 74,789,326,855.32
  5. Step 5: Solve for x
    x = 74,789,326,855.32/315,188.60
  6. Step 6: Final answer
    x = 237,284.37

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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.