Home / 402,231.03-555,018.66-230,121.66

Finding the Fourth Proportional to 402,231.03, 555,018.66 and 230,121.66

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Solution

The fourth proportional to 402,231.03, 555,018.66 and 230,121.66 is: 317,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,231.03 : 555,018.66 = 230,121.66 : x
  2. Step 2: Convert to fraction form
    402,231.03/555,018.66 = 230,121.66/x
  3. Step 3: Cross multiply
    402,231.03x = 555,018.66 × 230,121.66
  4. Step 4: Simplify right side
    402,231.03x = 127,721,813,288.86
  5. Step 5: Solve for x
    x = 127,721,813,288.86/402,231.03
  6. Step 6: Final answer
    x = 317,533.47

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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.