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Finding the Fourth Proportional to 274,515.10, 411,427.05 and 243,411.10

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Solution

The fourth proportional to 274,515.10, 411,427.05 and 243,411.10 is: 364,810.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,515.10 : 411,427.05 = 243,411.10 : x
  2. Step 2: Convert to fraction form
    274,515.10/411,427.05 = 243,411.10/x
  3. Step 3: Cross multiply
    274,515.10x = 411,427.05 × 243,411.10
  4. Step 4: Simplify right side
    274,515.10x = 100,145,910,810.26
  5. Step 5: Solve for x
    x = 100,145,910,810.26/274,515.10
  6. Step 6: Final answer
    x = 364,810.21

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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.