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Finding the Fourth Proportional to 470,389.44, 649,141.92 and 255,531.12

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Solution

The fourth proportional to 470,389.44, 649,141.92 and 255,531.12 is: 352,635.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,389.44 : 649,141.92 = 255,531.12 : x
  2. Step 2: Convert to fraction form
    470,389.44/649,141.92 = 255,531.12/x
  3. Step 3: Cross multiply
    470,389.44x = 649,141.92 × 255,531.12
  4. Step 4: Simplify right side
    470,389.44x = 165,875,961,856.55
  5. Step 5: Solve for x
    x = 165,875,961,856.55/470,389.44
  6. Step 6: Final answer
    x = 352,635.39

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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.