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Finding the Fourth Proportional to 270,750.60, 406,125.90 and 137,890.35

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Solution

The fourth proportional to 270,750.60, 406,125.90 and 137,890.35 is: 206,835.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,750.60 : 406,125.90 = 137,890.35 : x
  2. Step 2: Convert to fraction form
    270,750.60/406,125.90 = 137,890.35/x
  3. Step 3: Cross multiply
    270,750.60x = 406,125.90 × 137,890.35
  4. Step 4: Simplify right side
    270,750.60x = 56,000,842,495.07
  5. Step 5: Solve for x
    x = 56,000,842,495.07/270,750.60
  6. Step 6: Final answer
    x = 206,835.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.