Home / 343,579.74-515,541.50-154,175.56

Finding the Fourth Proportional to 343,579.74, 515,541.50 and 154,175.56

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Solution

The fourth proportional to 343,579.74, 515,541.50 and 154,175.56 is: 231,340.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,579.74 : 515,541.50 = 154,175.56 : x
  2. Step 2: Convert to fraction form
    343,579.74/515,541.50 = 154,175.56/x
  3. Step 3: Cross multiply
    343,579.74x = 515,541.50 × 154,175.56
  4. Step 4: Simplify right side
    343,579.74x = 79,483,899,465.74
  5. Step 5: Solve for x
    x = 79,483,899,465.74/343,579.74
  6. Step 6: Final answer
    x = 231,340.47

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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.