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Finding the Fourth Proportional to 216,280.10, 324,345.02 and 120,363.68

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Solution

The fourth proportional to 216,280.10, 324,345.02 and 120,363.68 is: 180,503.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,280.10 : 324,345.02 = 120,363.68 : x
  2. Step 2: Convert to fraction form
    216,280.10/324,345.02 = 120,363.68/x
  3. Step 3: Cross multiply
    216,280.10x = 324,345.02 × 120,363.68
  4. Step 4: Simplify right side
    216,280.10x = 39,039,360,405.92
  5. Step 5: Solve for x
    x = 39,039,360,405.92/216,280.10
  6. Step 6: Final answer
    x = 180,503.71

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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.