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Finding the Fourth Proportional to 605, 908.50 and 560.10

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Solution

The fourth proportional to 605, 908.50 and 560.10 is: 841.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    605 : 908.50 = 560.10 : x
  2. Step 2: Convert to fraction form
    605/908.50 = 560.10/x
  3. Step 3: Cross multiply
    605x = 908.50 × 560.10
  4. Step 4: Simplify right side
    605x = 508,850.85
  5. Step 5: Solve for x
    x = 508,850.85/605
  6. Step 6: Final answer
    x = 841.08

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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.