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Finding the Fourth Proportional to 470,399.44, 649,155.72 and 255,541.12

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Solution

The fourth proportional to 470,399.44, 649,155.72 and 255,541.12 is: 352,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,399.44 : 649,155.72 = 255,541.12 : x
  2. Step 2: Convert to fraction form
    470,399.44/649,155.72 = 255,541.12/x
  3. Step 3: Cross multiply
    470,399.44x = 649,155.72 × 255,541.12
  4. Step 4: Simplify right side
    470,399.44x = 165,885,979,743.21
  5. Step 5: Solve for x
    x = 165,885,979,743.21/470,399.44
  6. Step 6: Final answer
    x = 352,649.19

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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.