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Finding the Fourth Proportional to 405,259.20, 608,234.40 and 180,964.80

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Solution

The fourth proportional to 405,259.20, 608,234.40 and 180,964.80 is: 271,601.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,259.20 : 608,234.40 = 180,964.80 : x
  2. Step 2: Convert to fraction form
    405,259.20/608,234.40 = 180,964.80/x
  3. Step 3: Cross multiply
    405,259.20x = 608,234.40 × 180,964.80
  4. Step 4: Simplify right side
    405,259.20x = 110,069,016,549.12
  5. Step 5: Solve for x
    x = 110,069,016,549.12/405,259.20
  6. Step 6: Final answer
    x = 271,601.52

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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.