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Finding the Fourth Proportional to 260,187.71, 359,077.19 and 145,488.69

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Solution

The fourth proportional to 260,187.71, 359,077.19 and 145,488.69 is: 200,784.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,187.71 : 359,077.19 = 145,488.69 : x
  2. Step 2: Convert to fraction form
    260,187.71/359,077.19 = 145,488.69/x
  3. Step 3: Cross multiply
    260,187.71x = 359,077.19 × 145,488.69
  4. Step 4: Simplify right side
    260,187.71x = 52,241,669,254.54
  5. Step 5: Solve for x
    x = 52,241,669,254.54/260,187.71
  6. Step 6: Final answer
    x = 200,784.54

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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.