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Finding the Fourth Proportional to 308,035.64, 425,289.12 and 275,714.24

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Solution

The fourth proportional to 308,035.64, 425,289.12 and 275,714.24 is: 380,664.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,035.64 : 425,289.12 = 275,714.24 : x
  2. Step 2: Convert to fraction form
    308,035.64/425,289.12 = 275,714.24/x
  3. Step 3: Cross multiply
    308,035.64x = 425,289.12 × 275,714.24
  4. Step 4: Simplify right side
    308,035.64x = 117,258,266,501.07
  5. Step 5: Solve for x
    x = 117,258,266,501.07/308,035.64
  6. Step 6: Final answer
    x = 380,664.61

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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.