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Finding the Fourth Proportional to 260,532.80, 390,739.48 and 125,527.92

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Solution

The fourth proportional to 260,532.80, 390,739.48 and 125,527.92 is: 188,263.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,532.80 : 390,739.48 = 125,527.92 : x
  2. Step 2: Convert to fraction form
    260,532.80/390,739.48 = 125,527.92/x
  3. Step 3: Cross multiply
    260,532.80x = 390,739.48 × 125,527.92
  4. Step 4: Simplify right side
    260,532.80x = 49,048,714,186.28
  5. Step 5: Solve for x
    x = 49,048,714,186.28/260,532.80
  6. Step 6: Final answer
    x = 188,263.11

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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.