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Finding the Fourth Proportional to 343,005.66, 514,399.41 and 320,616.54

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Solution

The fourth proportional to 343,005.66, 514,399.41 and 320,616.54 is: 480,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,005.66 : 514,399.41 = 320,616.54 : x
  2. Step 2: Convert to fraction form
    343,005.66/514,399.41 = 320,616.54/x
  3. Step 3: Cross multiply
    343,005.66x = 514,399.41 × 320,616.54
  4. Step 4: Simplify right side
    343,005.66x = 164,924,959,012.24
  5. Step 5: Solve for x
    x = 164,924,959,012.24/343,005.66
  6. Step 6: Final answer
    x = 480,822.85

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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.