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Finding the Fourth Proportional to 382,638.60, 573,301.80 and 249,450.30

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Solution

The fourth proportional to 382,638.60, 573,301.80 and 249,450.30 is: 373,747.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,638.60 : 573,301.80 = 249,450.30 : x
  2. Step 2: Convert to fraction form
    382,638.60/573,301.80 = 249,450.30/x
  3. Step 3: Cross multiply
    382,638.60x = 573,301.80 × 249,450.30
  4. Step 4: Simplify right side
    382,638.60x = 143,010,306,000.54
  5. Step 5: Solve for x
    x = 143,010,306,000.54/382,638.60
  6. Step 6: Final answer
    x = 373,747.72

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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.