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Finding the Fourth Proportional to 273,025.20, 409,537.80 and 257,473.20

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Solution

The fourth proportional to 273,025.20, 409,537.80 and 257,473.20 is: 386,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,025.20 : 409,537.80 = 257,473.20 : x
  2. Step 2: Convert to fraction form
    273,025.20/409,537.80 = 257,473.20/x
  3. Step 3: Cross multiply
    273,025.20x = 409,537.80 × 257,473.20
  4. Step 4: Simplify right side
    273,025.20x = 105,445,007,886.96
  5. Step 5: Solve for x
    x = 105,445,007,886.96/273,025.20
  6. Step 6: Final answer
    x = 386,209.80

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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.