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Finding the Fourth Proportional to 429,669.88, 644,459.46 and 114,158.68

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Solution

The fourth proportional to 429,669.88, 644,459.46 and 114,158.68 is: 171,225.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,669.88 : 644,459.46 = 114,158.68 : x
  2. Step 2: Convert to fraction form
    429,669.88/644,459.46 = 114,158.68/x
  3. Step 3: Cross multiply
    429,669.88x = 644,459.46 × 114,158.68
  4. Step 4: Simplify right side
    429,669.88x = 73,570,641,267.11
  5. Step 5: Solve for x
    x = 73,570,641,267.11/429,669.88
  6. Step 6: Final answer
    x = 171,225.97

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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.