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Finding the Fourth Proportional to 608.31, 907.13 and 603.11

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Solution

The fourth proportional to 608.31, 907.13 and 603.11 is: 899.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.31 : 907.13 = 603.11 : x
  2. Step 2: Convert to fraction form
    608.31/907.13 = 603.11/x
  3. Step 3: Cross multiply
    608.31x = 907.13 × 603.11
  4. Step 4: Simplify right side
    608.31x = 547,102.95
  5. Step 5: Solve for x
    x = 547,102.95/608.31
  6. Step 6: Final answer
    x = 899.38

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.