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Finding the Fourth Proportional to 553.10, 829.65 and 337.10

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Solution

The fourth proportional to 553.10, 829.65 and 337.10 is: 505.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    553.10 : 829.65 = 337.10 : x
  2. Step 2: Convert to fraction form
    553.10/829.65 = 337.10/x
  3. Step 3: Cross multiply
    553.10x = 829.65 × 337.10
  4. Step 4: Simplify right side
    553.10x = 279,675.02
  5. Step 5: Solve for x
    x = 279,675.02/553.10
  6. Step 6: Final answer
    x = 505.65

Related Problems

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Half scale
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Double scale
Find fourth proportional to 554.10, 831.15 and 338.10
Similar ratio
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1.5x scale

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.