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Finding the Fourth Proportional to 346,500.50, 518,661.86 and 220,283.26

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Solution

The fourth proportional to 346,500.50, 518,661.86 and 220,283.26 is: 329,732.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,500.50 : 518,661.86 = 220,283.26 : x
  2. Step 2: Convert to fraction form
    346,500.50/518,661.86 = 220,283.26/x
  3. Step 3: Cross multiply
    346,500.50x = 518,661.86 × 220,283.26
  4. Step 4: Simplify right side
    346,500.50x = 114,252,524,309.31
  5. Step 5: Solve for x
    x = 114,252,524,309.31/346,500.50
  6. Step 6: Final answer
    x = 329,732.64

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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.