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Finding the Fourth Proportional to 501.65, 751.48 and 392.93

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Solution

The fourth proportional to 501.65, 751.48 and 392.93 is: 588.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    501.65 : 751.48 = 392.93 : x
  2. Step 2: Convert to fraction form
    501.65/751.48 = 392.93/x
  3. Step 3: Cross multiply
    501.65x = 751.48 × 392.93
  4. Step 4: Simplify right side
    501.65x = 295,279.04
  5. Step 5: Solve for x
    x = 295,279.04/501.65
  6. Step 6: Final answer
    x = 588.62

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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.