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Finding the Fourth Proportional to 260,588, 390,883.62 and 73,601.12

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Solution

The fourth proportional to 260,588, 390,883.62 and 73,601.12 is: 110,402.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,588 : 390,883.62 = 73,601.12 : x
  2. Step 2: Convert to fraction form
    260,588/390,883.62 = 73,601.12/x
  3. Step 3: Cross multiply
    260,588x = 390,883.62 × 73,601.12
  4. Step 4: Simplify right side
    260,588x = 28,769,472,221.65
  5. Step 5: Solve for x
    x = 28,769,472,221.65/260,588
  6. Step 6: Final answer
    x = 110,402.14

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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.