Home / 343,941.72-515,641.25-217,315.10

Finding the Fourth Proportional to 343,941.72, 515,641.25 and 217,315.10

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Solution

The fourth proportional to 343,941.72, 515,641.25 and 217,315.10 is: 325,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,941.72 : 515,641.25 = 217,315.10 : x
  2. Step 2: Convert to fraction form
    343,941.72/515,641.25 = 217,315.10/x
  3. Step 3: Cross multiply
    343,941.72x = 515,641.25 × 217,315.10
  4. Step 4: Simplify right side
    343,941.72x = 112,056,626,143.09
  5. Step 5: Solve for x
    x = 112,056,626,143.09/343,941.72
  6. Step 6: Final answer
    x = 325,801.20

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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.