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Finding the Fourth Proportional to 700.43, 1,050.24 and 213.35

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Solution

The fourth proportional to 700.43, 1,050.24 and 213.35 is: 319.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.43 : 1,050.24 = 213.35 : x
  2. Step 2: Convert to fraction form
    700.43/1,050.24 = 213.35/x
  3. Step 3: Cross multiply
    700.43x = 1,050.24 × 213.35
  4. Step 4: Simplify right side
    700.43x = 224,068.70
  5. Step 5: Solve for x
    x = 224,068.70/700.43
  6. Step 6: Final answer
    x = 319.90

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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.