Home / 380,880.45-571,395.35-140,996.19

Finding the Fourth Proportional to 380,880.45, 571,395.35 and 140,996.19

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Solution

The fourth proportional to 380,880.45, 571,395.35 and 140,996.19 is: 211,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,880.45 : 571,395.35 = 140,996.19 : x
  2. Step 2: Convert to fraction form
    380,880.45/571,395.35 = 140,996.19/x
  3. Step 3: Cross multiply
    380,880.45x = 571,395.35 × 140,996.19
  4. Step 4: Simplify right side
    380,880.45x = 80,564,569,828.94
  5. Step 5: Solve for x
    x = 80,564,569,828.94/380,880.45
  6. Step 6: Final answer
    x = 211,521.94

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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.