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Finding the Fourth Proportional to 555.10, 765.08 and 368.25

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Solution

The fourth proportional to 555.10, 765.08 and 368.25 is: 507.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.10 : 765.08 = 368.25 : x
  2. Step 2: Convert to fraction form
    555.10/765.08 = 368.25/x
  3. Step 3: Cross multiply
    555.10x = 765.08 × 368.25
  4. Step 4: Simplify right side
    555.10x = 281,741.74
  5. Step 5: Solve for x
    x = 281,741.74/555.10
  6. Step 6: Final answer
    x = 507.55

Related Problems

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Similar ratio
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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.