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Finding the Fourth Proportional to 484.75, 669.23 and 372.51

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Solution

The fourth proportional to 484.75, 669.23 and 372.51 is: 514.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.75 : 669.23 = 372.51 : x
  2. Step 2: Convert to fraction form
    484.75/669.23 = 372.51/x
  3. Step 3: Cross multiply
    484.75x = 669.23 × 372.51
  4. Step 4: Simplify right side
    484.75x = 249,294.87
  5. Step 5: Solve for x
    x = 249,294.87/484.75
  6. Step 6: Final answer
    x = 514.28

Related Problems

Find fourth proportional to 242.38, 334.62 and 186.26
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Double scale
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1.5x scale

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.