Home / 380,890.20-571,340.94-144,169.32

Finding the Fourth Proportional to 380,890.20, 571,340.94 and 144,169.32

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Solution

The fourth proportional to 380,890.20, 571,340.94 and 144,169.32 is: 216,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,890.20 : 571,340.94 = 144,169.32 : x
  2. Step 2: Convert to fraction form
    380,890.20/571,340.94 = 144,169.32/x
  3. Step 3: Cross multiply
    380,890.20x = 571,340.94 × 144,169.32
  4. Step 4: Simplify right side
    380,890.20x = 82,369,834,807.96
  5. Step 5: Solve for x
    x = 82,369,834,807.96/380,890.20
  6. Step 6: Final answer
    x = 216,256.11

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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.