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Finding the Fourth Proportional to 653, 901.18 and 377

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Solution

The fourth proportional to 653, 901.18 and 377 is: 520.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    653 : 901.18 = 377 : x
  2. Step 2: Convert to fraction form
    653/901.18 = 377/x
  3. Step 3: Cross multiply
    653x = 901.18 × 377
  4. Step 4: Simplify right side
    653x = 339,744.86
  5. Step 5: Solve for x
    x = 339,744.86/653
  6. Step 6: Final answer
    x = 520.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.