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Finding the Fourth Proportional to 470,685.30, 649,552.30 and 255,825.30

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Solution

The fourth proportional to 470,685.30, 649,552.30 and 255,825.30 is: 353,042.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,685.30 : 649,552.30 = 255,825.30 : x
  2. Step 2: Convert to fraction form
    470,685.30/649,552.30 = 255,825.30/x
  3. Step 3: Cross multiply
    470,685.30x = 649,552.30 × 255,825.30
  4. Step 4: Simplify right side
    470,685.30x = 166,171,912,013.19
  5. Step 5: Solve for x
    x = 166,171,912,013.19/470,685.30
  6. Step 6: Final answer
    x = 353,042.49

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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.