Home / 315,234.14-435,183.64-243,453.02

Finding the Fourth Proportional to 315,234.14, 435,183.64 and 243,453.02

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Solution

The fourth proportional to 315,234.14, 435,183.64 and 243,453.02 is: 336,089.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,234.14 : 435,183.64 = 243,453.02 : x
  2. Step 2: Convert to fraction form
    315,234.14/435,183.64 = 243,453.02/x
  3. Step 3: Cross multiply
    315,234.14x = 435,183.64 × 243,453.02
  4. Step 4: Simplify right side
    315,234.14x = 105,946,768,628.04
  5. Step 5: Solve for x
    x = 105,946,768,628.04/315,234.14
  6. Step 6: Final answer
    x = 336,089.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.