Home / 402,003.03-554,765.30-220,726.70

Finding the Fourth Proportional to 402,003.03, 554,765.30 and 220,726.70

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Solution

The fourth proportional to 402,003.03, 554,765.30 and 220,726.70 is: 304,603.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,003.03 : 554,765.30 = 220,726.70 : x
  2. Step 2: Convert to fraction form
    402,003.03/554,765.30 = 220,726.70/x
  3. Step 3: Cross multiply
    402,003.03x = 554,765.30 × 220,726.70
  4. Step 4: Simplify right side
    402,003.03x = 122,451,513,943.51
  5. Step 5: Solve for x
    x = 122,451,513,943.51/402,003.03
  6. Step 6: Final answer
    x = 304,603.46

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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.