Home / 402,187.22-555,022.94-220,903.40

Finding the Fourth Proportional to 402,187.22, 555,022.94 and 220,903.40

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Solution

The fourth proportional to 402,187.22, 555,022.94 and 220,903.40 is: 304,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,187.22 : 555,022.94 = 220,903.40 : x
  2. Step 2: Convert to fraction form
    402,187.22/555,022.94 = 220,903.40/x
  3. Step 3: Cross multiply
    402,187.22x = 555,022.94 × 220,903.40
  4. Step 4: Simplify right side
    402,187.22x = 122,606,454,807.04
  5. Step 5: Solve for x
    x = 122,606,454,807.04/402,187.22
  6. Step 6: Final answer
    x = 304,849.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.