Home / 311,121.04-466,749.60-100,780.24

Finding the Fourth Proportional to 311,121.04, 466,749.60 and 100,780.24

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Solution

The fourth proportional to 311,121.04, 466,749.60 and 100,780.24 is: 151,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,121.04 : 466,749.60 = 100,780.24 : x
  2. Step 2: Convert to fraction form
    311,121.04/466,749.60 = 100,780.24/x
  3. Step 3: Cross multiply
    311,121.04x = 466,749.60 × 100,780.24
  4. Step 4: Simplify right side
    311,121.04x = 47,039,136,707.90
  5. Step 5: Solve for x
    x = 47,039,136,707.90/311,121.04
  6. Step 6: Final answer
    x = 151,192.40

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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.