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Finding the Fourth Proportional to 501.57, 751.05 and 354.54

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Solution

The fourth proportional to 501.57, 751.05 and 354.54 is: 530.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.57 : 751.05 = 354.54 : x
  2. Step 2: Convert to fraction form
    501.57/751.05 = 354.54/x
  3. Step 3: Cross multiply
    501.57x = 751.05 × 354.54
  4. Step 4: Simplify right side
    501.57x = 266,277.27
  5. Step 5: Solve for x
    x = 266,277.27/501.57
  6. Step 6: Final answer
    x = 530.89

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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.