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Finding the Fourth Proportional to 343,512.58, 515,019.75 and 230,913.51

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Solution

The fourth proportional to 343,512.58, 515,019.75 and 230,913.51 is: 346,202.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,512.58 : 515,019.75 = 230,913.51 : x
  2. Step 2: Convert to fraction form
    343,512.58/515,019.75 = 230,913.51/x
  3. Step 3: Cross multiply
    343,512.58x = 515,019.75 × 230,913.51
  4. Step 4: Simplify right side
    343,512.58x = 118,925,017,037.26
  5. Step 5: Solve for x
    x = 118,925,017,037.26/343,512.58
  6. Step 6: Final answer
    x = 346,202.81

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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.