Home / 384,206.28-576,301.34-128,057.40

Finding the Fourth Proportional to 384,206.28, 576,301.34 and 128,057.40

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Solution

The fourth proportional to 384,206.28, 576,301.34 and 128,057.40 is: 192,083.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,206.28 : 576,301.34 = 128,057.40 : x
  2. Step 2: Convert to fraction form
    384,206.28/576,301.34 = 128,057.40/x
  3. Step 3: Cross multiply
    384,206.28x = 576,301.34 × 128,057.40
  4. Step 4: Simplify right side
    384,206.28x = 73,799,651,216.92
  5. Step 5: Solve for x
    x = 73,799,651,216.92/384,206.28
  6. Step 6: Final answer
    x = 192,083.41

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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.