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Finding the Fourth Proportional to 988, 1,482.08 and 304

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Solution

The fourth proportional to 988, 1,482.08 and 304 is: 456.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    988 : 1,482.08 = 304 : x
  2. Step 2: Convert to fraction form
    988/1,482.08 = 304/x
  3. Step 3: Cross multiply
    988x = 1,482.08 × 304
  4. Step 4: Simplify right side
    988x = 450,552.32
  5. Step 5: Solve for x
    x = 450,552.32/988
  6. Step 6: Final answer
    x = 456.02

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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.