Home / 305,389.20-457,862.31-205,301.10

Finding the Fourth Proportional to 305,389.20, 457,862.31 and 205,301.10

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Solution

The fourth proportional to 305,389.20, 457,862.31 and 205,301.10 is: 307,802.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,389.20 : 457,862.31 = 205,301.10 : x
  2. Step 2: Convert to fraction form
    305,389.20/457,862.31 = 205,301.10/x
  3. Step 3: Cross multiply
    305,389.20x = 457,862.31 × 205,301.10
  4. Step 4: Simplify right side
    305,389.20x = 93,999,635,891.54
  5. Step 5: Solve for x
    x = 93,999,635,891.54/305,389.20
  6. Step 6: Final answer
    x = 307,802.75

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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.