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Finding the Fourth Proportional to 700.61, 1,050.92 and 213.66

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Solution

The fourth proportional to 700.61, 1,050.92 and 213.66 is: 320.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.61 : 1,050.92 = 213.66 : x
  2. Step 2: Convert to fraction form
    700.61/1,050.92 = 213.66/x
  3. Step 3: Cross multiply
    700.61x = 1,050.92 × 213.66
  4. Step 4: Simplify right side
    700.61x = 224,539.57
  5. Step 5: Solve for x
    x = 224,539.57/700.61
  6. Step 6: Final answer
    x = 320.49

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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.