Home / 367,619.76-551,128.32-130,827.60

Finding the Fourth Proportional to 367,619.76, 551,128.32 and 130,827.60

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Solution

The fourth proportional to 367,619.76, 551,128.32 and 130,827.60 is: 196,134.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,619.76 : 551,128.32 = 130,827.60 : x
  2. Step 2: Convert to fraction form
    367,619.76/551,128.32 = 130,827.60/x
  3. Step 3: Cross multiply
    367,619.76x = 551,128.32 × 130,827.60
  4. Step 4: Simplify right side
    367,619.76x = 72,102,795,397.63
  5. Step 5: Solve for x
    x = 72,102,795,397.63/367,619.76
  6. Step 6: Final answer
    x = 196,134.17

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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.