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Finding the Fourth Proportional to 343,512.95, 515,020.30 and 230,913.89

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Solution

The fourth proportional to 343,512.95, 515,020.30 and 230,913.89 is: 346,203.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,512.95 : 515,020.30 = 230,913.89 : x
  2. Step 2: Convert to fraction form
    343,512.95/515,020.30 = 230,913.89/x
  3. Step 3: Cross multiply
    343,512.95x = 515,020.30 × 230,913.89
  4. Step 4: Simplify right side
    343,512.95x = 118,925,340,901.97
  5. Step 5: Solve for x
    x = 118,925,340,901.97/343,512.95
  6. Step 6: Final answer
    x = 346,203.37

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1.5x scale

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.