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Finding the Fourth Proportional to 398,964.48, 598,446.72 and 171,210.72

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Solution

The fourth proportional to 398,964.48, 598,446.72 and 171,210.72 is: 256,816.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,964.48 : 598,446.72 = 171,210.72 : x
  2. Step 2: Convert to fraction form
    398,964.48/598,446.72 = 171,210.72/x
  3. Step 3: Cross multiply
    398,964.48x = 598,446.72 × 171,210.72
  4. Step 4: Simplify right side
    398,964.48x = 102,460,493,812.84
  5. Step 5: Solve for x
    x = 102,460,493,812.84/398,964.48
  6. Step 6: Final answer
    x = 256,816.08

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.