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Finding the Fourth Proportional to 459.08, 688.70 and 264.05

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Solution

The fourth proportional to 459.08, 688.70 and 264.05 is: 396.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    459.08 : 688.70 = 264.05 : x
  2. Step 2: Convert to fraction form
    459.08/688.70 = 264.05/x
  3. Step 3: Cross multiply
    459.08x = 688.70 × 264.05
  4. Step 4: Simplify right side
    459.08x = 181,851.64
  5. Step 5: Solve for x
    x = 181,851.64/459.08
  6. Step 6: Final answer
    x = 396.12

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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.