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Finding the Fourth Proportional to 426,535.36, 639,704.62 and 160,322.79

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Solution

The fourth proportional to 426,535.36, 639,704.62 and 160,322.79 is: 240,447.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,535.36 : 639,704.62 = 160,322.79 : x
  2. Step 2: Convert to fraction form
    426,535.36/639,704.62 = 160,322.79/x
  3. Step 3: Cross multiply
    426,535.36x = 639,704.62 × 160,322.79
  4. Step 4: Simplify right side
    426,535.36x = 102,559,229,454.29
  5. Step 5: Solve for x
    x = 102,559,229,454.29/426,535.36
  6. Step 6: Final answer
    x = 240,447.19

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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.