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Finding the Fourth Proportional to 637,739.96, 956,665 and 164,421.32

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Solution

The fourth proportional to 637,739.96, 956,665 and 164,421.32 is: 246,646.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,739.96 : 956,665 = 164,421.32 : x
  2. Step 2: Convert to fraction form
    637,739.96/956,665 = 164,421.32/x
  3. Step 3: Cross multiply
    637,739.96x = 956,665 × 164,421.32
  4. Step 4: Simplify right side
    637,739.96x = 157,296,122,097.80
  5. Step 5: Solve for x
    x = 157,296,122,097.80/637,739.96
  6. Step 6: Final answer
    x = 246,646.18

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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.