Home / 284,183.18-392,170.90-155,121.14

Finding the Fourth Proportional to 284,183.18, 392,170.90 and 155,121.14

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Solution

The fourth proportional to 284,183.18, 392,170.90 and 155,121.14 is: 214,066.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,183.18 : 392,170.90 = 155,121.14 : x
  2. Step 2: Convert to fraction form
    284,183.18/392,170.90 = 155,121.14/x
  3. Step 3: Cross multiply
    284,183.18x = 392,170.90 × 155,121.14
  4. Step 4: Simplify right side
    284,183.18x = 60,833,997,082.83
  5. Step 5: Solve for x
    x = 60,833,997,082.83/284,183.18
  6. Step 6: Final answer
    x = 214,066.14

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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.