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Finding the Fourth Proportional to 274,323.40, 411,485.10 and 168,800.20

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Solution

The fourth proportional to 274,323.40, 411,485.10 and 168,800.20 is: 253,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,323.40 : 411,485.10 = 168,800.20 : x
  2. Step 2: Convert to fraction form
    274,323.40/411,485.10 = 168,800.20/x
  3. Step 3: Cross multiply
    274,323.40x = 411,485.10 × 168,800.20
  4. Step 4: Simplify right side
    274,323.40x = 69,458,767,177.02
  5. Step 5: Solve for x
    x = 69,458,767,177.02/274,323.40
  6. Step 6: Final answer
    x = 253,200.30

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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.