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Finding the Fourth Proportional to 360,352.60, 540,594.78 and 120,443.80

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Solution

The fourth proportional to 360,352.60, 540,594.78 and 120,443.80 is: 180,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,352.60 : 540,594.78 = 120,443.80 : x
  2. Step 2: Convert to fraction form
    360,352.60/540,594.78 = 120,443.80/x
  3. Step 3: Cross multiply
    360,352.60x = 540,594.78 × 120,443.80
  4. Step 4: Simplify right side
    360,352.60x = 65,111,289,563.36
  5. Step 5: Solve for x
    x = 65,111,289,563.36/360,352.60
  6. Step 6: Final answer
    x = 180,687.72

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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.