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Finding the Fourth Proportional to 469.83, 703.65 and 286.89

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Solution

The fourth proportional to 469.83, 703.65 and 286.89 is: 429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    469.83 : 703.65 = 286.89 : x
  2. Step 2: Convert to fraction form
    469.83/703.65 = 286.89/x
  3. Step 3: Cross multiply
    469.83x = 703.65 × 286.89
  4. Step 4: Simplify right side
    469.83x = 201,870.15
  5. Step 5: Solve for x
    x = 201,870.15/469.83
  6. Step 6: Final answer
    x = 429.67

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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.