Home / 306,988.55-423,491.82-205,150.61

Finding the Fourth Proportional to 306,988.55, 423,491.82 and 205,150.61

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Solution

The fourth proportional to 306,988.55, 423,491.82 and 205,150.61 is: 283,006.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,988.55 : 423,491.82 = 205,150.61 : x
  2. Step 2: Convert to fraction form
    306,988.55/423,491.82 = 205,150.61/x
  3. Step 3: Cross multiply
    306,988.55x = 423,491.82 × 205,150.61
  4. Step 4: Simplify right side
    306,988.55x = 86,879,605,203.01
  5. Step 5: Solve for x
    x = 86,879,605,203.01/306,988.55
  6. Step 6: Final answer
    x = 283,006.01

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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.