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Finding the Fourth Proportional to 360,313.15, 540,535.53 and 120,404.31

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Solution

The fourth proportional to 360,313.15, 540,535.53 and 120,404.31 is: 180,628.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,313.15 : 540,535.53 = 120,404.31 : x
  2. Step 2: Convert to fraction form
    360,313.15/540,535.53 = 120,404.31/x
  3. Step 3: Cross multiply
    360,313.15x = 540,535.53 × 120,404.31
  4. Step 4: Simplify right side
    360,313.15x = 65,082,807,520.13
  5. Step 5: Solve for x
    x = 65,082,807,520.13/360,313.15
  6. Step 6: Final answer
    x = 180,628.46

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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.