Home / 380,869.20-571,341.69-141,047.28

Finding the Fourth Proportional to 380,869.20, 571,341.69 and 141,047.28

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Solution

The fourth proportional to 380,869.20, 571,341.69 and 141,047.28 is: 211,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,869.20 : 571,341.69 = 141,047.28 : x
  2. Step 2: Convert to fraction form
    380,869.20/571,341.69 = 141,047.28/x
  3. Step 3: Cross multiply
    380,869.20x = 571,341.69 × 141,047.28
  4. Step 4: Simplify right side
    380,869.20x = 80,586,191,325.10
  5. Step 5: Solve for x
    x = 80,586,191,325.10/380,869.20
  6. Step 6: Final answer
    x = 211,584.95

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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.