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Finding the Fourth Proportional to 360,228.93, 540,281.89 and 120,309.63

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Solution

The fourth proportional to 360,228.93, 540,281.89 and 120,309.63 is: 180,443.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,228.93 : 540,281.89 = 120,309.63 : x
  2. Step 2: Convert to fraction form
    360,228.93/540,281.89 = 120,309.63/x
  3. Step 3: Cross multiply
    360,228.93x = 540,281.89 × 120,309.63
  4. Step 4: Simplify right side
    360,228.93x = 65,001,114,281.60
  5. Step 5: Solve for x
    x = 65,001,114,281.60/360,228.93
  6. Step 6: Final answer
    x = 180,443.90

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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.