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Finding the Fourth Proportional to 408,029.40, 612,043.17 and 108,510.06

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Solution

The fourth proportional to 408,029.40, 612,043.17 and 108,510.06 is: 162,764.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,029.40 : 612,043.17 = 108,510.06 : x
  2. Step 2: Convert to fraction form
    408,029.40/612,043.17 = 108,510.06/x
  3. Step 3: Cross multiply
    408,029.40x = 612,043.17 × 108,510.06
  4. Step 4: Simplify right side
    408,029.40x = 66,412,841,099.29
  5. Step 5: Solve for x
    x = 66,412,841,099.29/408,029.40
  6. Step 6: Final answer
    x = 162,764.84

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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.