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Finding the Fourth Proportional to 300,817.11, 415,127.25 and 164,859.60

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Solution

The fourth proportional to 300,817.11, 415,127.25 and 164,859.60 is: 227,506.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,817.11 : 415,127.25 = 164,859.60 : x
  2. Step 2: Convert to fraction form
    300,817.11/415,127.25 = 164,859.60/x
  3. Step 3: Cross multiply
    300,817.11x = 415,127.25 × 164,859.60
  4. Step 4: Simplify right side
    300,817.11x = 68,437,712,384.10
  5. Step 5: Solve for x
    x = 68,437,712,384.10/300,817.11
  6. Step 6: Final answer
    x = 227,506.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.