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Finding the Fourth Proportional to 274,234.60, 411,351.90 and 249,740.20

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Solution

The fourth proportional to 274,234.60, 411,351.90 and 249,740.20 is: 374,610.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,234.60 : 411,351.90 = 249,740.20 : x
  2. Step 2: Convert to fraction form
    274,234.60/411,351.90 = 249,740.20/x
  3. Step 3: Cross multiply
    274,234.60x = 411,351.90 × 249,740.20
  4. Step 4: Simplify right side
    274,234.60x = 102,731,105,776.38
  5. Step 5: Solve for x
    x = 102,731,105,776.38/274,234.60
  6. Step 6: Final answer
    x = 374,610.30

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1.5x scale

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.