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Finding the Fourth Proportional to 179,762.80, 269,644.20 and 112,986.40

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Solution

The fourth proportional to 179,762.80, 269,644.20 and 112,986.40 is: 169,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,762.80 : 269,644.20 = 112,986.40 : x
  2. Step 2: Convert to fraction form
    179,762.80/269,644.20 = 112,986.40/x
  3. Step 3: Cross multiply
    179,762.80x = 269,644.20 × 112,986.40
  4. Step 4: Simplify right side
    179,762.80x = 30,466,127,438.88
  5. Step 5: Solve for x
    x = 30,466,127,438.88/179,762.80
  6. Step 6: Final answer
    x = 169,479.60

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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.