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Finding the Fourth Proportional to 309,045.46, 426,536.13 and 174,909.46

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Solution

The fourth proportional to 309,045.46, 426,536.13 and 174,909.46 is: 241,405.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,045.46 : 426,536.13 = 174,909.46 : x
  2. Step 2: Convert to fraction form
    309,045.46/426,536.13 = 174,909.46/x
  3. Step 3: Cross multiply
    309,045.46x = 426,536.13 × 174,909.46
  4. Step 4: Simplify right side
    309,045.46x = 74,605,204,168.79
  5. Step 5: Solve for x
    x = 74,605,204,168.79/309,045.46
  6. Step 6: Final answer
    x = 241,405.27

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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.