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Finding the Fourth Proportional to 320,673.40, 481,010.10 and 268,574.20

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Solution

The fourth proportional to 320,673.40, 481,010.10 and 268,574.20 is: 402,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,673.40 : 481,010.10 = 268,574.20 : x
  2. Step 2: Convert to fraction form
    320,673.40/481,010.10 = 268,574.20/x
  3. Step 3: Cross multiply
    320,673.40x = 481,010.10 × 268,574.20
  4. Step 4: Simplify right side
    320,673.40x = 129,186,902,799.42
  5. Step 5: Solve for x
    x = 129,186,902,799.42/320,673.40
  6. Step 6: Final answer
    x = 402,861.30

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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.