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Finding the Fourth Proportional to 260,804.53, 390,699.19 and 192,291.29

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Solution

The fourth proportional to 260,804.53, 390,699.19 and 192,291.29 is: 288,062.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,804.53 : 390,699.19 = 192,291.29 : x
  2. Step 2: Convert to fraction form
    260,804.53/390,699.19 = 192,291.29/x
  3. Step 3: Cross multiply
    260,804.53x = 390,699.19 × 192,291.29
  4. Step 4: Simplify right side
    260,804.53x = 75,128,048,332.10
  5. Step 5: Solve for x
    x = 75,128,048,332.10/260,804.53
  6. Step 6: Final answer
    x = 288,062.67

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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.