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Finding the Fourth Proportional to 470,348.89, 649,082.69 and 255,487.21

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Solution

The fourth proportional to 470,348.89, 649,082.69 and 255,487.21 is: 352,573.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,348.89 : 649,082.69 = 255,487.21 : x
  2. Step 2: Convert to fraction form
    470,348.89/649,082.69 = 255,487.21/x
  3. Step 3: Cross multiply
    470,348.89x = 649,082.69 × 255,487.21
  4. Step 4: Simplify right side
    470,348.89x = 165,832,325,527.40
  5. Step 5: Solve for x
    x = 165,832,325,527.40/470,348.89
  6. Step 6: Final answer
    x = 352,573.01

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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.