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Finding the Fourth Proportional to 429,575.40, 644,363.10 and 249,968.03

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Solution

The fourth proportional to 429,575.40, 644,363.10 and 249,968.03 is: 374,952.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,575.40 : 644,363.10 = 249,968.03 : x
  2. Step 2: Convert to fraction form
    429,575.40/644,363.10 = 249,968.03/x
  3. Step 3: Cross multiply
    429,575.40x = 644,363.10 × 249,968.03
  4. Step 4: Simplify right side
    429,575.40x = 161,070,171,489.88
  5. Step 5: Solve for x
    x = 161,070,171,489.88/429,575.40
  6. Step 6: Final answer
    x = 374,952.04

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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.