Home / 700.21-1,050.16-289.24

Finding the Fourth Proportional to 700.21, 1,050.16 and 289.24

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Solution

The fourth proportional to 700.21, 1,050.16 and 289.24 is: 433.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.21 : 1,050.16 = 289.24 : x
  2. Step 2: Convert to fraction form
    700.21/1,050.16 = 289.24/x
  3. Step 3: Cross multiply
    700.21x = 1,050.16 × 289.24
  4. Step 4: Simplify right side
    700.21x = 303,748.28
  5. Step 5: Solve for x
    x = 303,748.28/700.21
  6. Step 6: Final answer
    x = 433.80

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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.