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Finding the Fourth Proportional to 250,308.82, 345,374.40 and 142,913.80

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Solution

The fourth proportional to 250,308.82, 345,374.40 and 142,913.80 is: 197,191.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,308.82 : 345,374.40 = 142,913.80 : x
  2. Step 2: Convert to fraction form
    250,308.82/345,374.40 = 142,913.80/x
  3. Step 3: Cross multiply
    250,308.82x = 345,374.40 × 142,913.80
  4. Step 4: Simplify right side
    250,308.82x = 49,358,767,926.72
  5. Step 5: Solve for x
    x = 49,358,767,926.72/250,308.82
  6. Step 6: Final answer
    x = 197,191.49

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1.5x scale

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.