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Finding the Fourth Proportional to 607.30, 910.03 and 278.05

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Solution

The fourth proportional to 607.30, 910.03 and 278.05 is: 416.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.30 : 910.03 = 278.05 : x
  2. Step 2: Convert to fraction form
    607.30/910.03 = 278.05/x
  3. Step 3: Cross multiply
    607.30x = 910.03 × 278.05
  4. Step 4: Simplify right side
    607.30x = 253,032.32
  5. Step 5: Solve for x
    x = 253,032.32/607.30
  6. Step 6: Final answer
    x = 416.65

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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.