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Finding the Fourth Proportional to 274,280.30, 411,420.45 and 134,312.30

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Solution

The fourth proportional to 274,280.30, 411,420.45 and 134,312.30 is: 201,468.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,280.30 : 411,420.45 = 134,312.30 : x
  2. Step 2: Convert to fraction form
    274,280.30/411,420.45 = 134,312.30/x
  3. Step 3: Cross multiply
    274,280.30x = 411,420.45 × 134,312.30
  4. Step 4: Simplify right side
    274,280.30x = 55,258,826,906.54
  5. Step 5: Solve for x
    x = 55,258,826,906.54/274,280.30
  6. Step 6: Final answer
    x = 201,468.45

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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.