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Finding the Fourth Proportional to 453,048.30, 680,090.85 and 266,165.10

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Solution

The fourth proportional to 453,048.30, 680,090.85 and 266,165.10 is: 399,552.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,048.30 : 680,090.85 = 266,165.10 : x
  2. Step 2: Convert to fraction form
    453,048.30/680,090.85 = 266,165.10/x
  3. Step 3: Cross multiply
    453,048.30x = 680,090.85 × 266,165.10
  4. Step 4: Simplify right side
    453,048.30x = 181,016,449,099.34
  5. Step 5: Solve for x
    x = 181,016,449,099.34/453,048.30
  6. Step 6: Final answer
    x = 399,552.21

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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.